CHANNEL ISLANDS (CBS) —  Four bodies have been found near an overturned fishing boat off the coast of the Channel Islands, according to authorities.

The four men took the boat out Saturday and failed to return to dock.

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When family members of the men reported them missing Sunday morning, the Coast Guard initiated a search using two small boats. They were aided in the search by a Santa Barbara Sheriff’s Department helicopter and Santa Cruz Island park rangers.

The boat didn’t have any visible signs that would indicate it crashed into anything, said officials.

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The bodies were discovered by the chopper. Authorities said that when they were able to get to the location by boat, one of the four bodies either floated away or sank. Three bodies have been recovered and officials say they will return to the area tomorrow to look for the fourth victim.

Apparently none of the victims was wearing a life vest, said authorities.

Petty Officer Adam Eggers told the Ventura County Star that while the day was relatively clear and sunny, some choppy waves were reported.

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Cause of the accident remains under investigation.