VIDEO: It’s unknown what exactly is burning, but video from Sky 12 showed multiple ladder trucks spraying water onto smoldering debris. Fire crews are working to control a fire that sparked at a recycling center in Mesa Monday night. The fire ignited near Southern Avenue and Center around 7:30 p.m. The Mesa Fire Department only said that it is a working incident and crews are trying to bring the fire under control. It’s unknown what exactly is burning, but video from Sky 12 showed multiple ladder trucks spraying water onto smoldering debris. No injuries have been reported. The cause of the fire is under investigation.