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SAN FRANCISCO (AP) — A 69-year-old San Francisco man who has died in a hang-gliding accident in the city’s Golden Gate National Recreation Area has been identified.

The San Francisco Chronicle reports Monday that Rafael Lavin was hang gliding at the popular site when he slammed into the hill around 3:50 p.m. Sunday.

The accident occurred immediately after takeoff and may have involved a mechanical failure, the newspaper reported.

Park police and fire department paramedics found Lavin 30 feet down the side of a cliff below the hang-gliding launch pad at Fort Funston in the recreation area.

Fort Funston, a former military reservation along the western edge of the city with 200-foot bluffs, is one of the premiere hang-gliding spots in the country.