D.C. police have identified an 11-year-old boy who is believed to have drowned after falling into the Potomac River as Jorge Castro of Winchester, Virginia.

Officials say the boy was fishing with his father around 5 p.m. Sunday when he slipped off rocks into the Potomac about 75 yards south of the Chain Bridge. Authorities say the father tried to reach the child and had to be rescued.

Lt. Paul Niepling of the police department's Harbor Unit says authorities are still searching for Castro's body.

Niepling says authorities also are looking for a fisherman who jumped into the river in an attempt to rescue the boy. The man, who's from the Falls Church area, has not been seen since then.