LAKE LUZERNE, N.Y. (AP) — A body recovered from the upper Hudson River has been tentatively identified as the remains of a U.S. Navy sailor who disappeared swimming in the treacherous, rain-swollen waters.

Warren County Sheriff Bud York says the body found Thursday morning is believed to be that of 20-year-old Jesse Lyon of Soda Springs, Idaho. He says an autopsy will officially determine the identity and cause of death.

The body was found under a bridge about 2 miles south of where Lyons disappeared Sunday afternoon while swimming across the river with a group of other sailors assigned to the Navy's nuclear power training site near Saratoga Springs.

Officials say the currents along that stretch of river 45 miles north of Albany have gotten stronger because of persistent rain in recent weeks.