STAMFORD, Conn. (AP) — Stamford police say they believe a man whose frozen body was found at a local beach fell down while jogging, hit his head and drowned.

The chief medical examiner’s office has ruled the death of 50-year-old Frank Kuleba of Norwalk an accidental drowning. His body was found Saturday on the beach in a remote section of Cove Island Park.

Police say they learned from Kuleba’s friends that he jogged regularly along the beach. Officers believe he rolled into the water unconscious Friday afternoon after falling and hitting his head.