About 4,000 pigs are dead after a barn fire in Watford, Warwick Township, on Wednesday night.

Fire chief Rick Sitlington said the large barn was "fully engulfed" when firefighters arrived at the farm located in the 5500 block of Arkona Rd., located about 18 kilometres west of Strathroy.

Between 50 and 60 firefighters were called to the scene, many from nearby departments. 

The OPP say the damage is estimated at $1-million and that the Ontario Fire Marshal has determined the fire is not suspicious.