An alleged al-Qaeda leader has died just days before going on trial in New York over the 1998 US embassy attacks in Africa.
Abu Anas al-Liby, 50, died in hospital on Friday, his wife and lawyers say. He is reported to have had liver cancer.
Mr Liby was seized in a US raid in Tripoli in October 2013.
He was to stand trial on 12 January over the 1998 embassy attacks, which killed more than 220 people in Kenya and Tanzania.
Mr Liby, whose real name was Nazih Abdul-Hamed al-Ruqai, previously pleaded not guilty to terrorism charges.
His wife, Um Abdullah, accused the US government on Saturday of "kidnapping, mistreating and killing an innocent man," according to the Associated Press news agency.