The Latest: Helicopter searches resume in Alpine jet crash

Helicopter operations have resumed over mountainsides in the French Alps where a German jetliner crashed, killing all 150 people on board.

Under overcast skies, with temperatures just above freezing, helicopters resumed flights Wednesday over a widely scattered debris field.

A black box has been recovered from the scene. The Airbus A320 operated by Germanwings, a budget subsidiary of Lufthansa, was less than an hour from landing in Duesseldorf on a flight from Barcelona Tuesday when it unexpectedly went into a rapid descent. The pilots did not send out a distress call and had lost radio contact with their control center, France's aviation authority said.