Mexico City ? The bodies of two dozen people washed ashore Friday in southern Mexico, a state official said, after a boat believed to be carrying Central American migrants capsized in the Pacific Ocean.

Oaxaca’s state government later released a statement saying three people were confirmed dead and 20 others missing following the shipwreck. It said there was one survivor and authorities were searching for bodies near the towns of San Francisco Ixhuatan and San Francisco del Mar, about 200 miles from the Guatemalan border.

Sergio Segreste, the Oaxaca state public safety secretary, said 24 bodies had washed ashore.

“This morning, we got a report that a vessel carrying undocumented migrants had capsized or gone down,” Segreste said. “The assumption is that the cause of the accident was the rough weather.”