Officers were called to the area of Ocean Street and Beech Avenue about 5:40 a.m., according to a Carlsbad police statement.
Once there, they found bystanders on the beach trying to help the man, who was eventually taken by paramedics to Tri-City Medical Center, police said. He was pronounced dead at short time later.
“The police department began a comprehensive investigation into the suspicious death,” police said in their statement. “Additional details are under investigation. The male’s identity is currently unknown.”