Leonard Kevin Jones, 57, dies while kayaking on Lake Sutherland in San Diego County.

A kayaker who died on Lake Sutherland Saturday was identified Monday as a 57-year-old Ramona man .

Leonard Kevin Jones' body was recovered from the lake by San Diego Lifeguard divers Sunday morning, according to the San Diego County Medical Examiner's Office.

A city worker noticed an upside down kayak at Lake Sutherland Dam just after 1:30 p.m. Saturday, a San Diego County sheriff's Lt. said.

The city worker told authorities the man, who frequently fishes at the lake, had a heart condition, another sheriff's official said.

Robbins said deputies checked the shoreline and asked for a helicopter to help in the search. A search-and-rescue team was unable to find Jones before dark, and the search was resumed Sunday.

Jones was declared dead at 9:36 a.m. Sunday, according to the M.E.'s Office. An autopsy is pending.

Lake Sutherland, owned by the city, is about 45 miles northeast of downtown San Diego.