ALGIERS -- Four people were killed on Tuesday when a civil protection aircraft crashed at Ferhat Abbas Airport in Jijel, 350 km east of Algiers, according to Algeria's Civil Protection authorities.

The aircraft, a Zlin-type plane, was on a training mission when it crashed, said the authorities in a statement.

The victims include two members of the Civil Protection force, a flight instructor from the Civil Protection Aviation School, and an aviation company manager, who was of Chilean nationality.

An investigation into the cause of the crash is expected to be launched.