Cairo: Egypt’s air accidents chief said on Thursday that a vessel provided by French company ALSEAMAR, which specialises in marine wreckage searches, will join within hours the hunt for the black boxes from crashed EgyptAir flight MS804.

A week after the Airbus A320 crashed into the Mediterranean with 66 people on board, including 30 Egyptians and 15 from France, investigators have no clear picture of its final moments.

Search teams are working against the clock to recover the two black box flight recorders that will offer vital clues to investigators, because the signals that help locate them in deep water cease transmitting after about 30 days.

“A ship from the French company ALSEAMAR moved from the French island of Corsica to the search area,” Ayman Al Moqadem, Egypt’s head of air accident investigations, said.

Negotiations were also under way to contract a second firm to search more than one area at once.