The weapons were used in 4 rockets fired on Dec 23, according to unnamed sources in Western intelligence services cited by the newspaper.

The execution was carried out after officials called for a speedy investigation and trial because of public outrage.

The untitled new project will look at the officers and enlisted men who served in the Eighth Air Force against Germany.

Some of the exercises are expected to be close to the territorial waters of Syria, where rebels have recently stepped up their attacks.

An unidentified person made a warning call to the Eleftherotipia newspaper and the Zougla news website around 50 minutes before the blast.

U.S. authorities are trying to extradite the German-born Internet tycoon from New Zealand, where he is free on bail.

Believed to be among the 32 dead militants was their leader, a Nigerien close to al Qaeda-linked commander, presumed mastermind of the raid.