A man who went into cardiac arrest in the Cove Friday morning while surfing subsequently died, Clatsop County Medical Examiner Dr. JoAnn Giuliani said late Friday.

The cause of death was natural causes, Giuliani said. The man did not drown.

The Seaside Fire Department’s water rescue team and firefighters responded to the Cove area in front of the Tides Motel on the ocean shore shortly after 11 a.m., Seaside Fire Division Chief Chris Dugan said.

Dugan said it was “a challenge” to get the surfer out of the water and onto a board, where responders administered CPR.

Responders continued CPR until a hand-off to Medix at the Avenue A approach, where the surfer was transferred to Providence Seaside Hospital.

Time of death and the man’s name have not been released.