Data on the missions of French nuclear submarines has leaked online after sailors serving on them publicly shared their sports activities through the Strava app, Le Monde newspaper reported.
One of the French sailors, for example, shared his running session with the date and route along the piers where the submarines are moored, adding that "it is difficult to return to sports after two and a half months in a box," the report said on Monday.
Thus, the overlapping training schedules of at least three sailors, which abruptly stopped and resumed after one and a half to two months, made it possible to identify the probable dates and duration of missions, the report read.