Russia

The social network has previously said as many as 126 million Americans may have seen content uploaded by Russia-based agents over the past two years.

It is building a tool to let people see whether they had followed now-deleted pages made by the Russia-based Internet Research Agency.

The tool will be launched in December.

The Internet Research Agency was behind hundreds of Facebook, Instagram and Twitter accounts and posted thousands of politically-charged messages.

Russia's weather service acknowledged it had measured pollution of ruthenium-106 at 1,000 times normal levels in the Ural Mountains.

It said there was no health risk.

The announcement appeared to confirm a report by France's nuclear safety institute which detected a cloud of radioactive pollution over Europe.

The Institute for Radioprotection and Nuclear Safety (IRSN) said on 9 November it had detected ruthenium-106 in France. It added that the source of contamination could have been an accident at a nuclear facility in either Russia or Kazakhstan.

Russia's weather service acknowledged it had measured pollution of ruthenium-106 at 1,000 times normal levels in the Ural Mountains.

It said there was no health risk.

The announcement appeared to confirm a report by France's nuclear safety institute which detected a cloud of radioactive pollution over Europe.

The Institute for Radioprotection and Nuclear Safety (IRSN) said on 9 November it had detected ruthenium-106 in France. It added that the source of contamination could have been an accident at a nuclear facility in either Russia or Kazakhstan.

In a joint statement issued after a two-day meeting in Denver, the organisations also criticised the International Olympic Committee (IOC) for "continuing failure in its obligations to clean sport."

"A country's sport leaders and organisations should not be given credentials to the Olympics when they intentionally violate the rules and rob clean athletes," said the statement.

"This is especially unfair when athletes are punished when they violate the rules."

The International Olympic Committee (IOC) is understood to be close to issuing what has been described as an "F1-style" fine, sum similar to the $US100 million sanction slapped on McLaren in 2007 for spying on Ferrari.

That would be imposed as an alternative to excluding Russia from February's Games in PyeongChang.

Senior anti-doping officials have told PA Sport they believe the IOC and Russia have already agreed the terms of the sanction.

He tweeted that Mr Putin "vehemently denied" interfering in the US election at their first face-to-face encounter at the G20 on Friday.

But Mr Trump's position contrasts with some of his own senior officials.

And he is facing criticism from within his party after revealing a proposal to partner with Russia on online security.

He tweeted that he and Mr Putin had discussed forming "an impenetrable Cyber Security unit so that election hacking and many other negative things will be guarded and safe", prompting derision on social media and from the Republican Party.

Both countries also called for a simultaneous suspension of US-South Korea large-scale military exercises.

North Korea said its missile could hit anywhere in the world, but both the US and Russia said the missile presented no threat to either country.

Though the country appears to have made progress, experts believe the device cannot accurately hit a target.

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.

Navalny's wife, Yulia, reported news of his detention at his home in Moscow on his official Twitter feed. She also posted a picture showing police officers at the scene.

He had planned to attend a rally in the capital, but is now facing a possible 30-day jail term, according to a post on Twitter by his lawyer, Vadim Kobzev.

State news agency Tass confirmed he had been arrested, reporting that he faces allegations of violating laws governing demonstrations.

It’s becoming viral on social media and news websites are busy tagging it as a recent image. They are reporting that Putin has summoned top Russian priest to fight WannaCry ransomware.