POINT SUR, Calif. -- The U.S. Coast Guard continued to search the ocean Saturday for four Navy pilots missing after two fighter jets collided in the course of a combat exercise Friday.

Two cutters looked for the pilots through the night and at first light Saturday, an HH-65 Dolphin helicopter was sent to aid the search about 80 miles southwest of Monterey, Coast Guard spokeswoman Veronica Bandrowski said.

"We'll continue to search until all probability of survival has been exhausted," she said.

Computer-aided search programs, which calculate sea changes, wind and other factors, are guiding searchers over about 40 square miles where the pilots may have drifted.

The Coast Guard sent home three commercial fishing vessels that helped in the search Friday.