UK

OpenAI chief executive Sam Altman said the move was an "opportunity to attract world-class talent".

It comes after he criticised the EU's proposed legislation regulating artificial intelligence (AI), which would require companies to reveal the content used to train their systems.

The UK meanwhile is planning what it calls "pro-innovation" regulation.

"We are thrilled to extend our research and development footprint into London, a city globally renowned for its rich culture and exceptional talent pool," said Diane Yoon, OpenAI VP of People.

It says the UK economy's performance in 2023 will be the worst among the 20 biggest economies, known as the G20, which includes sanctions-hit Russia.

BBC reports the IMF predicts the UK economy will shrink this year, although this is a small upgrade from its last forecast.

It also warned of a "rocky road" for the global financial system.

It follows the collapse of two US banks last month, closely followed by a rushed takeover of Swiss banking giant Credit Suisse by its rival UBS, which sparked fears of another financial crisis.

BBC reports investors have recently been unnerved by a string of bank failures.

But US stock markets were higher after Treasury Secretary Janet Yellen signalled the US government would protect people's deposits if another bank collapsed.

In the UK, the FTSE closed 1.79% higher after gains in top bank shares.

NatWest, Prudential and Barclays shares gained about 5%, while Standard Chartered and Lloyds also traded higher.

Ms Yellen said "the situation is stabilising, and the US banking system remains sound" in a speech on Tuesday.

The group legal action, led by consumer rights champion Alex Neill, could see almost nine million gamers compensated.

It claims Sony PlayStation breached competition law, imposing unfair terms and conditions on games' developers and publishers, and driving up prices.

"The game is up," said Ms Neill. Sony PlayStation has yet to comment.

"Charges have been authorised against Harvey Weinstein, 70, following a review of the evidence gathered by the Metropolitan Police in its investigation," said Rosemary Ainslie, head of the Crown Prosecution Service's (CPS) Special Crime Division.

The CPS said the alleged assault took place in August 1996 in London.

London's Metropolitan Police said the accusation involved a woman, now aged in her 50s.

The latest new cases were reported in France, Italy and Sweden.

It follows the confirmation of cases in the US, Spain and Portugal on Wednesday, as well as the investigation of 13 suspected cases in Canada.

Monkeypox is most common in remote parts of Central and West Africa.

Cases of the disease outside of the region are often linked to travel to the area.

Monkeypox is a rare viral infection which is usually mild and from which most people recover in a few weeks, according to the UK's National Health Service.

The UK is phasing out Russian oil and the EU is sharply reducing gas imports as countries harden their response to the Russian invasion of Ukraine.

Biden said the move meant the "American people will deal another powerful blow" to Putin's leadership.

"We will not be part of subsidising Putin's war," Biden added.

Despite mounting fears of rising gas prices, the move has widespread bipartisan political support in the US.

The prime minister told MPs the legal duty to isolate for those who tested positive would be dropped as he unveiled his "living with Covid" plan.

From 1 April the provision of free testing would be targeted to the most vulnerable, Boris Johnson said.

But the British Medical Association, a doctors' union, said the plan failed to protect those most at risk from Covid.

And opposition parties said the prime minister's blueprint out of the pandemic had moved too fast, and voiced concern over the scaling back of free testing.

In a 40-minute call, Joe Biden and Boris Johnson agreed a deal was still possible despite a chorus of warnings of imminent Russian military action.

Russia has always denied plans to invade Ukraine, despite massing more than 100,000 troops on the border.

On Monday its foreign minister said diplomacy was "far from exhausted".

More than a dozen nations have urged their citizens to leave Ukraine, and the US has said aerial bombardments could begin "at any time".

Commissioner Cressida Dick said they were looking into "potential breaches of Covid-19 regulations" in Downing Street and Whitehall since 2020.

Boris Johnson told the Commons he welcomed the investigation as it would "give the public the clarity it needs" over the allegations.

His spokesman also said the PM did not believe he had broken the law.

Dame Cressida said the investigation was launched after the Cabinet Office inquiry team, led by civil servant Sue Gray, passed information to the force.