A Land O’ Lakes dairy processing plant in Tulare, Calif. reported a three-alarm fire today.

According to the Tulare Fire Department, the fire started in a building dedicated to maintenance, welding, cold storage and storage of cardboard boxes. The fire took about 1 1/2 to 2 hours to bring under control, Battalion Chief Willard Epps said. No injuries have been reported.

Officials believe the fire spread through the venting system. The sprinkler system went off but was not effective because the fire was above the sprinklers, Epps said.