A Libyan man accused of making the bomb which destroyed Pan Am flight 103 over the Scottish town of Lockerbie in 1998 is in United States custody.
The US announced charges against Abu Agila Masud two years ago, alleging that he played a key role in the bombing on 21 December, 1988.
The blast on board the Boeing 747 left 270 people dead. It is the deadliest terrorist attack to have taken place on British soil.
All 259 passengers and crew on board the jumbo jet bound to New York from London died while another 11 people were killed on the ground in Lockerbie when wreckage destroyed their homes.
Mishal Husain presents BBC News at Ten reporting by Sarah Smith in Washington and Alexandra Mackenzie in Lockerbie.
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