NIAGARA-ON-THE-LAKE, ONT.—Fire officials in Niagara-on-the-Lake, Ont., beat down a fast-spreading fire that damaged more than 30 vehicles in a hayfield on Sunday.

Niagara-on-the-Lake Fire and Emergency Services says nobody was injured in the blaze, which was under control by 5 p.m.

Officials say the field was being used as parking for the nearby Niagara Lavender Festival.

Photos tweeted by the fire department show numerous burnt-out vehicles — glass shattered and sides charred — and videos show billowing black smoke.

Firefighters did not say what may have caused the blaze.