Authorities have identified a man who drowned Monday on Sullivan’s Island as Santos Castillo, 23, of Hanahan.

Castillo died at 4:49 p.m. at East Cooper Medical Center, said Bobbi Jo O’Neal, chief deputy coroner.

Paramedics responded to the island shortly before 4 p.m. regarding a possible drowning near the beach access at Station 24. CPR was performed before emergency personnel took the person to the hospital, dispatchers said.