One person is in critical condition following an explosion at South Fork Dairy in Dimmit.

Castro County Sheriffs say they were notified at 7:20 p.m., Monday, about an explosion and fire at the Southfork Dairy Farm and some employees were trapped inside a milking building. 

Fire crews brought the person out of the building, treated and was flown to UMC Hospital in Lubbock. 

That person is listed in critical condition.

The blaze extended killing an unknown number of dairy cattle.

Nine nearby fire crews helped in battling and putting out the blaze

The cause of the fire is unknown and the Texas State Fire Marshal’s Office is investigating.