Algeria’s national airline, Air Algerie, says it has lost contact with one of its planes flying from Burkina Faso.
Contact was lost about 50 minutes after take-off from Ouagadougou, the airline is quoted by Algeria’s state news agency as saying.
The passenger airline was bound for Algiers, it added.
The passenger airliner was last seen at 0155 GMT, it added. It should have landed at 0510.
Flight AH 5017 had 110 passengers and six crew on board, according to the Spanish airline Swiftair, which owns the plane.