The pilot of the plane made multiple mayday calls shortly before crashing into the water at about 12:30 p.m., according to the NTSB.

All six people aboard a twin-engine Cessna 414 died when the small plane went down in the Pacific Ocean off the San Diego coast, the Federal Aviation Administration confirmed Monday.

Search crews found scattered wreckage of the aircraft floating in an area where the water is about 200 feet deep, Coast Guard Petty Officer Ryan Graves said.