Earlier,
the Israeli parole board said Olmert had undergone a "significant
rehabilitation process" in prison and his behaviour had been largely
"impeccable".
He is however currently being investigated by the
state attorney's office over suspicions he smuggled a chapter of a book
he is writing out of prison, raising fears that it might compromise
national security.
There had been calls for leniency after a
leaked picture of him in a hospital gown looking gaunt circulated on
social media last week.
He had been taken to hospital complaining of chest pains but was given the all-clear and returned to prison.
In
2014, Olmert was convicted of bribery in connection with a property
development dating to his period as mayor of Jerusalem between 1993 and
2003.
He was also convicted of fraud, breach of trust and
obstructing justice when a trade minister, in a series of separate
trials, and acquitted of other charges.
Ukraine says it has proof that
Russian security services were involved in the cyber-attack that
targeted businesses around the world earlier this week.
The
country's security service, the SBU, said it had obtained data that
points to a link with an attack on the nation's capital, Kiev, in
December.
Ukrainian firms were among the first to report issues with malicious software on Tuesday, before the virus spread.
Moscow denied any involvement, adding that the allegations were "unfounded".
The
virus, which disrupted IT systems across the globe, froze computers and
demanded a ransom be paid in the digital currency Bitcoin, which is
untraceable.
However, the attack also hit major Russian firms,
leading some cyber security researchers to suggest that Moscow was not
behind it.
But on Saturday, Ukraine's SBU said in a statement that
- through data obtained from international anti-virus companies - it
had established a connection with a previous attack involving the
so-called Petya virus, which it alleges was not designed to secure
ransom payments.
The SBU later said the ransom demand was a cover, adding that
the attack was aimed at disrupting the operations of state and private
companies in Ukraine and causing political destabilisation.
The lack of any real mechanism for securing financial payments, the SBU said, led the agency to this assumption.
Ukraine appears to have been particularly badly hit in the recent attacks.
The
police received about 1,000 messages on intrusions in the operations of
computer networks over a 24-hour period. A total of 150 companies filed
official complaints with the police.
In December, the country's
financial, transport and energy systems were targeted by what
investigators judged to be a cyber-attack. The incident resulted in a power cut in Kiev.
The attack earlier this week comes two months after another global ransomware assault, known as WannaCry, which caused major problems for the UK's National Health Service.
US President Donald Trump has
defended his use of social media in a series of tweets, following a row
over comments he made about two MSNBC TV presenters.
"My use of social media is not presidential - it's modern day presidential," he tweeted on Saturday.
His tweets were condemned by Democrats and Republicans alike, despite the White House springing to his defence.
Mr Trump's aides have previously expressed concern over his tweets.
But
the president said on Saturday that social media gave him the
opportunity to connect directly to the public, bypassing the mainstream
media, whose content Mr Trump regularly labels as "fake news".
"The
FAKE & FRAUDULENT NEWS MEDIA is working hard to convince
Republicans and others I should not use social media," he tweeted,
adding: "But remember, I won the 2016 election with interviews, speeches
and social media."
Mr Trump also stepped up his attack on CNN after the US news
network retracted an article alleging that one of the president's aides
was under investigation by Congress.
"I am extremely pleased to see that @CNN has finally been exposed as #FakeNews and garbage journalism. It's about time!"
The story that caused the upset, which was later removed from the website following an internal investigation, resulted in the resignations of three CNN journalists:
Thomas Frank, investigative unit editor and Pulitzer Prize winner Eric
Lictblau and Lex Harris, who oversaw the investigations unit.
Mr Trump has repeatedly called CNN "fake news" and has previously
labelled Buzzfeed a "failing pile of garbage". At a news conference in
February, the president was introduced to the BBC's North America
editor, Jon Sopel, to which he responded: "Here's another beauty."
Meanwhile,
addressing military veterans at the John F Kennedy Center for
Performing Arts in Washington on Saturday, Mr Trump promised that
America would "win again", prompting cheers from the crowd as he
attacked media outlets.
"The fake media is trying to silence us,
but we will not let them," he said at the Celebrate Freedom Rally. "The
fake media tried to stop us from going to the White House. But I'm
president, and they're not."
The US president has more than 33
million followers on Twitter. Although it is becoming seemingly more
difficult for the president to shock this audience, his 140-character
posts have been condemned by both politicians and commentators.
Some
consider the language used by Mr Trump as unsuitable for the holder of
the highest office. On Friday, the New York Post published a three-word editorial on Mr Trump's tweets: "Stop. Just stop."
It followed the president's tweets on Thursday mocking MSNBC Morning
Joe host Mika Brzezinski, saying she had been "bleeding badly from a
facelift" when he saw her six months ago.
He also verbally attacked her co-host and partner, Mr Scarborough, describing him as "psycho Joe".
Ms Brzezinksi and Mr Scarborough hit back, accusing the president of an "unhealthy obsession" with them". They alleged the White House had tried to blackmail them into apologising for their show's negative coverage of President Trump.
Senator Lindsey Graham said Mr Trump's remarks were "beneath the
office" of president, while fellow Republican Ben Sasse said "this isn't
normal and it's beneath the dignity of your office".
Despite the criticism, President Trump stepped up his attack on Ms Brzezinksi on Saturday, calling her "dumb as a rock".
A local resident told AFP he heard "gunfire at around 06:00 (03:00 GMT), then an explosion which smashed the glass of houses in the neighbourhood".
No group has said it carried out the attack.
More than 300,000 people have lost their lives in the Syrian war, which began with anti-government protests in 2011.
The UN's refugee agency says that since the conflict began about 5.5 million people have left the country, and another 6.3 million have been left internally displaced.
Damascus has remained mostly under the control of President Bashar al-Assad, and avoided much of the fighting.
However, the capital has experienced a number of suicide bomb attacks.
In March, two bomb attacks in the capital killed more than 40 people - the majority of them Iraqi pilgrims visiting the Bab al-Saghir cemetery, which houses Shia mausoleums. A jihadist group affiliated with al-Qaeda claimed that attack.
Such attacks may become more common as IS loses its territory and resorts to its tactic of striking soft targets in cities to sow instability, the BBC's Arab affairs editor Sebastian Usher reports.
The army is still fighting rebels in the eastern suburban areas of Jobar and Ain Tarma.
On Thursday, the European Union's migration commissioner, Dimitris Avramopoulos, promised more financial support for Italy, and urged member states to demonstrate greater solidarity.
The interior ministers of France, Germany and Italy are due to discuss the issue at a meeting in Paris on Sunday.
Mr Grandi, who is the United Nations High Commissioner for Refugees, said 12,600 migrants and refugees had arrived in Italy last weekend alone.
In total, he said, 83,650 people have reached Italy by sea since the beginning of the year - a 20% increase on the same period in 2016.
An estimated 2,030 have lost their lives in the Mediterranean this year.
The vast majority of migrants making their way to Italy across the Mediterranean set off from Libya.
Libya is a gateway to Europe for migrants from across sub-Saharan Africa and also from the Arabian peninsula, Egypt, Syria and Bangladesh. Many are fleeing war, poverty or persecution.
The UNHCR said that among the arrivals in Italy there was an alarmingly high rate of unaccompanied children or victims of sexual or gender-based violence.
A note on terminology: The BBC uses the term migrant to refer to all people on the move who have yet to complete the legal process of claiming asylum. This group includes people fleeing war-torn countries such as Syria, who are likely to be granted refugee status, as well as people who are seeking jobs and better lives, who governments are likely to rule are economic migrants.
Revellers, police and some protesters have converged on Canada's national capital on Saturday for a party that has been years in the planning.
Canada is marking its 150th anniversary as a country in towns, cities and at backyard barbecues nationwide.
But the biggest bash is at Parliament Hill in Ottawa, where organisers expect hundreds of thousands of people.
And by mid-morning, they had turned out in their droves - albeit huddled under umbrellas, trying to avoid the rain.
Some partygoers, like 24-year-old students Morgan Haines, Jon Salamati and Nima Sahebi, got to the hill before the sun had even risen.
Their early morning netted them a prime spot right next to the main stage, where they said they planned to stay until after the fireworks at midnight.
The three travelled from Vancouver, on Canada's west coast, to celebrate the day in the capital.
"One-fifty is only going to happen once," Mr Salamati said. "By the time we hit Canada 200, we might not be able to do this trip."
The celebrations included a concert by Canadian artists, a display from Canada's aerobatics squadron the Snowbirds, a citizenship ceremony for new Canadians, and a massive fireworks display.
Canadian theatre giants Cirque du Soleil performed, and Bono and The Edge from rock band U2 serenaded the crowd with an acoustic set.
Canada's Prime Minister Justin Trudeau, who has made inclusiveness a political calling card, gave a speech celebrating that attribute.
"We don't care where you're from or what religion you practise, or whom you love - you are all welcome in Canada," he said to cheers from the crowd.
Mr Trudeau's speech was delivered in both English and French, a tradition in Canada, which recognises both as its official languages.
"This is as good a reason as any to reflect on our past, to cheer on today, and to recommit ourselves to the future," he said to the 25,000 partygoers who had waited hours to get past security and on to the parliament's lawn.
But he also took a moment to remember Canada's indigenous people, whom he said had been "the victims of oppression" since the first settlers arrived.
"As a society, we must acknowledge past mistakes," he said, telling the audience that there was still much work to be done in order to achieve reconciliation.
However, Canada, he said, was determined to see a reconciliation over the coming years and decades.
"It is a choice we make not because of what we did, or who we were, but because of who we are," Mr Trudeau said.
Indigenous culture is being represented in many ways across the festivities, and a number of indigenous performers are participating in Canada Day concerts in the capital region.
Some indigenous peoples refused to recognise Canada 150, saying it represented more than a hundred years of colonisation.
Sandwiched between security fences and to the west of the main stage on the parliament's lawn, a group of indigenous protesters have set up a teepee.
They have been allowed to stay on Parliament Hill after erecting the structure in the early hours of Thursday morning in what organisers called a "reoccupation".
Early on Saturday morning, some of the protesters held a sunrise ceremony, lighting a small fire after negotiating with security to bring firewood onto site.
Jess Bolduc, from the Anishinaabe First Nation, said she hoped the day would be one of "conversation and dialogue" when Canada Day revellers flood the lawn.
"In celebrating Canada 150, we're celebrating a half-truth," she said.
"We need to be thinking about the tens of thousands of years indigenous people have been, and continue to be, here."
Across the Ottawa river in Gatineau, Quebec, crowds also lined up to see Prince Charles and the Duchess of Cornwall open a new hall at Canada's Museum of History.
Prince Charles' mother, the Queen, is Canada's head of state.
Rumela Kabir Booth, from an Indian dance school in Ottawa, helped entertain the crowd before their arrival.
"Canada is such a multicultural and inclusive society," she said. "It's great to highlight all the different cultures and aspects that come together."
Canada shelled out an estimated C$500m ($385m; £293m) on everything from festivities to security and infrastructure projects.
Canada Day, held on 1 July each year, marks the merging of four former British colonies into a single new country. It is a national holiday.
The country grew in size in the years that followed, and finally achieved complete autonomy from the UK in 1931. It was not until 1982, however, that the British parliament transferred final legal powers to Canada, including the power to amend its constitution.
Businesses have also been trying to capitalise. KFC has temporarily rebranded itself "K'ehFC", in reference to the Canadian slang, while coffee shop Tim Hortons is selling a poutine donut - although only at selected US outlets.
As Canada celebrates its 150th anniversary, BBC World News will explore this vast country throughout July - from discovering some of the most remote places in Canada on The Travel Show to documentary-style programming in Canada Stories.
To mark this occasion, we are offering Canadian audiences the chance to watch BBC World News as a free channel preview.
