A barn fire in the Jarvis area spread to a second barn Monday morning, leaving approximately 4,000 pigs dead.

Haldimand County OPP say the fire was spotted around 1 a.m. at a farm on Highway 3, about 15 kilometres east of Simcoe.

According to police, both barns were destroyed.

Highway 3 remained closed between Keith Richardson Parkway and East Quarter Line until around 9:45 a.m.

Fire crews remained on-site after that dealing with hotspots.