A French naval supply vessel picked up a signal from one of the two recorders on 1 June, and Egypt has chartered a second vessel operated by Mauritius-based Deep Ocean Search, equipped with sonar equipment and an underwater vehicle.
Remi Jouty, director of the BEA air accident agency, which is advising Egypt on the underwater search, said the first ship continued to pick up locator signals from the first recorder, whose location had been narrowed to within 1 to 2 kilometres.