LONDON (AP) -- British police have arrested a Libyan man in his 50s on suspicion of conspiracy to murder in the 1984 killing of London policewoman Yvonne Fletcher.
They said it is "the first significant arrest" in the investigation into the killing of the 25-year-old policewoman more than 30 years ago.
Fletcher was killed and 10 others injured when a gunman opened fire on police and protesters from inside the Libyan embassy in London.
The killing led Britain to break diplomatic relations and helped seal Libya's reputation as a rogue state.
Police said Thursday they had also arrested a man and a woman as part of a money-laundering investigation dealing with the slaying.