Crews were out into the early morning hours fighting a fire in Madison County.

The fire burned a trailer at the Mountain West, Colorado Aggreate site south of Rexburg. It started between 10:30 and 11:00 Sunday night. A passing bike rider called the fire into dispatch. No one was injured in the fire. Officials say the fire started in a modular extention to the office and are looking at a heater as the possible cause of the fire.