"A failed American attempt to abduct two senior Iranian security officers on an official visit to northern Iraq was the starting pistol for a crisis that 10 weeks later led to Iranians seizing 15 British sailors and Marines. Early on the morning of 11 January, helicopter-born US forces launched a surprise raid on a long-established Iranian liaison office in the city of Arbil in Iraqi Kurdistan. They captured five relatively junior Iranian officials whom the US accuses of being intelligence agents and still holds." [LINK]
"A failed American attempt to abduct two senior Iranian security officers on an official visit to northern Iraq was the starting pistol for a crisis that 10 weeks later led to Iranians seizing 15 British sailors and Marines. Early on the morning of 11 January, helicopter-born US forces launched a surprise raid on a long-established Iranian liaison office in the city of Arbil in Iraqi Kurdistan. They captured five relatively junior Iranian officials whom the US accuses of being intelligence agents and still holds." [