VIDEO: Firefighters in Johnson County are still on the scene of a large wooden pallet fire. They had to put their battle against the stubborn blaze on hold briefly Monday night because of a tornado threat. The fire is burning at a wooden pallet plant in Lillian, which is about 30 miles south of Fort Worth. Investigators believe it started around 10:30 p.m. Monday because of a lightning strike. Firefighters had to work quickly because the plant is in an area surrounded by homes. As many as 15 fire departments were called in to help battle the flames. At one point, they had to take shelter because there were reports of a possible tornado on the ground nearby. Alvarado Fire Captain Brad Hargrove told FOX 4 it was one of the scariest situations he’s had to deal with.