LONDON - Scottish prosecutors have contacted Libya's interim rulers for help in tracking down information which could lead to others being charged over the 1988 bombing of a US-bound airliner over Lockerbie in Scotland.

"In particular we have asked the NTC (National Transitional Council) to make available to the Crown any documentary evidence and witnesses which could assist in the ongoing enquiries," a spokeswoman for the Scottish Crown Office said.

Abdel Basset al-Megrahi, a former Libyan agent who was convicted of the bombing which killed 270 people, was released on compassionate grounds in 2009, but the Crown Office said his trial court had accepted he had not acted alone.