Powell called the probe "unprecedented" and came after his refusal to lower interest rates after demands by Donald Trump.
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Star glamour on the Golden Globes red carpet
The Golden Globes, one of Hollywood's leading awards ceremonies, is taking place in Los Angeles.
Iran warns it will retaliate if US attacks, as hundreds killed in protests
President Trump said on Sunday that the US military was considering "very strong options" in Iran.
Golden Globes host Nikki Glaser's best jokes
The US comic delivered a scorching opening monologue that roasted the A-listers in the room.
Parents of under-fives to be offered screen time guidance
Children who spend the most time on devices or in front of screens find conversation and learning harder, the government says.
US figure skater whose parents were killed in DC plane crash heads to Olympics
His parents were among 67 people killed last January when a commercial plane collided mid-air with a military helicopter.
The Papers: l 'Protester death toll soars' and 'EU demands "Farage clause"'
The growing number of protester deaths in Iran and Donald Trump's much-anticipated response lead Monday's papers.
Four killed and five injured in head-on crash
Three teenagers and a man in his 50s died in the crash in Bolton, says Greater Manchester Police.
Himalayas bare and rocky after reduced winter snowfall, scientists warn
Experts say dwindling snowfall during winter will impact the lives and livelihoods of millions.
The 'vicious cycle' that means the NHS still wastes billions on patients who don't need to be in hospital
The delayed discharge challenge throws up deeper questions about the care system and co-ordination.
Eggie, Neo, Isaac and Memo are domestic robots. But would you let them load your dishwasher?
Joe Tidy meets robots being trained to tidy up all your mess.
Why luxury carmakers are now building glitzy skyscrapers
Bugatti is the latest auto firm to construct an opulent apartment building for the super rich.
Revolutionary eye injection saved my sight, says first ever patient
Nicki's eye had collapsed in on itself, but a new gel injection method has saved her vision.
How to watch the Golden Globe-nominated films
Hamnet, Avatar and Marty Supreme will face one battle after another as the awards race heats up.
Murphy & Selby lose on thrilling Masters first day
Reigning champion Shaun Murphy and current UK title holder Mark Selby are both eliminated on a thrilling opening day of the Masters at London's Alexandra Palace.
More federal agents to be sent to Minnesota, Trump administration says
The move comes after protests against immigration enforcement have been held across the US after a woman was shot by an ICE agent.
Champions Cup key moments and qualification stakes
What were the key moments and qualification stakes after the penultimate round of pool games in this season's Investec Champions Cup?
UK can legally stop shadow fleet tankers, ministers believe
Existing law could be used to approve the use of military force to stop sanction-busting ships operated by Russia and Iran.
Guantanamo detainee paid 'substantial' compensation by UK to settle torture complicity case
Detained without trial in 2006, Zubaydah is one of 15 people who remain at the US military prison.
Huge Roman villa uncovered under popular park in ‘amazing discovery’
The largest Roman villa ever found in Wales lies less than a metre under Margam County Park.
Thousands of tourists stranded in Lapland as cold grounds flights
All flights out of Kittila airport in northern Finland were cancelled on Sunday with temperatures falling as low as -38C.