A wildfire started Tuesday afternoon at a park in University City, fire officials confirmed.
According to the San Diego Fire Department, fire started near Governor Drive and Greenwich Drive at about 1:20 p.m.
When firefighters arrived, the fire had already burned about a quarter-acre and was moving at a moderate rate. The fire was about 200 yards from homes in the area, but were never threatened, officials said.
About 30 minutes after firefighters arrived, the fire was knocked down. No homes were damaged.
Later, fire investigators determined the fire was accidental, and caused by a piece of brush-thinning equipment.
No injuries were reported.