GREENFIELD (CBS SF) — A suspect fatally gunned down a man as he was riding his bicycle in Greenfield Tuesday afternoon, police said.

At about 1:20 p.m., officers responded to a report of a shooting in the 600 block of Apple Street, according to Police Chief Denise Oglesby.

There, officers found an unresponsive man on the ground. Medical crews attempted life-saving measures, however, the man was pronounced dead at the scene, Oglesby said.

Investigators believe the shooter may have been a juvenile male, according to Oglesby.

Oglesby could not confirm whether the shooting was gang-related as the incident remains under investigation.

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