At least one migrant came ashore at Virginia Key Beach in Miami Tuesday morning, authorities said.
City of Miami Police suspect that the migrant arrived on a fishing boat. The man later told reporters in Spanish that his name is Pacheco and he is from Pinar del Rio, Cuba.
Witnesses said the 65-year-old man was found sleeping at a lifeguard tower on the beach around 7:30 a.m.
The man said he had come from Pinar del Rio on the western end of Cuba with two other men when their boat ran out of gas, witnesses said.
They were helped by a fisherman who put them ashore, the man told witnesses. The man didn't give a reason for coming to the U.S. but said he has family in New York, the witnesses said.
Park worker Rafael Albuquerque talked with the 65-year-old.
"He stayed three days in the ocean and the gasoline finished,” Albuquerque said.
He was detained while police looked for others that were believed to be part of the group, according to police.
Customs and Border Patrol agents said they were not looking in the water.