The US attorney's office in Washington has said that the Libyan militia leader suspected in the 2012 attack on the American diplomatic mission in Benghazi that killed four Americans is in federal custody.
A spokesman said: "Ahmed Abu Khatallah is in law enforcement custody," but would not say where he was being held. US officials said Khattallah was expected to arrive in America over the weekend.
More top news
Children's charity Kids Company is being investigated by the Metropolitan Police over criminal allegations.
A senior employee at a 4-star London hotel has been jailed for six years for raping a man who he lured to a fake job interview.
The Philae has now began delivering what is called the "ground truth" by touching and analysing the material on a comet's surface.