The Scottish government says it will continue to investigate the Lockerbie bombing that killed 270 people even though the only man convicted over the case is dead.

First Minister Alex Salmond said in a statement Sunday that the Lockerbie investigation remains live and Scottish officials are cooperating with the new Libyan authorities in their investigations.

Salmond said prosecutors have always believed that Abdel Baset al-Megrahi, whose death was confirmed by his son Sunday, did not act alone in blowing up the PanAm flight 103 over the Scottish town of Lockerbie in 1988.

Scotland released al-Megrahi from his Scottish prison in 2009 on humanitarian grounds to the fury of the U.S. government and some of the families of those who died.

Salmond said he still believed Scotland had acted correctly in releasing him.