TIJUANA, Mexico (AP) — Mexican rescuers were scouring the Gulf of California on Tuesday for seven U.S. tourists whose fishing boat capsized two days ago, saying they were extending their search because the missing tourists could still be alive in the warm, calm waters.

One American has been confirmed dead in the accident, which came after a sudden storm upended the boat before dawn Sunday, spilling dozens of tourists and crew members into the water. The identity of the dead man was not released.

By early Monday, 19 of the tourists and all 16 crew members had been picked up by the navy or other fishing boats after clinging to coolers, rescue rings and life vests for more than 16 hours.

Mexican navy, army and state officials met late Monday to discuss the search and there were reports they would call off rescue efforts. But instead they announced the search would continue over an extended area.

The U.S. Coast Guard sent a C130 fixed-wing aircraft that can stay in the air longer and search farther than the helicopter it used Monday, said Petty Officer Levi Read.