Huge - The third Middlewick fire looked to be the largest of the three(Image: Sophie Finch)Speaking from the scene after the fire was extinguished, station commander Nick Singleton said: "We’ve been to Middlewick Ranges quite a few times in recent days. "However, residents can help us by keeping an eye out for any suspicious activity and reporting it directly to Essex Police." Essex County Fire and Rescue also confirmed the other twos fire could be either accidental or deliberate. He said: “The worry is for the residents homes who live in Speedwell Road at the back of the ranges. MP for north and mid Essex, Sir Bernard Jenkin, attended Middlewick Ranges towards the end of the fire last night.