SAN DIEGO (CBS 8) - The Coast Guard is investigating the death of a diver off the coast of Point Loma.

The 70 year old victim was on a tour with a local commercial diving boat when he suffered a medical problem and went into distress at about 5:45 p.m. Saturday. Lifeguards say the diver was unconscious when they arrived.

The diver died shortly after arriving on shore. His name has not been released.