No injuries were reported as the result of a structure fire in Casper late Monday, but firefighters say the building is a total loss.

Patrick McJunkin of the Casper Fire-EMS Department says firefighters responded to the area of Jefferson and C Streets at about 11 p.m. Monday after multiple callers indicated that a building was "well involved" in flames.

The blaze was also reported by the crew of a Wyoming Life Flight helicopter, who spotted flames as they flew toward Wyoming Medical Center.

The building was "fully involved" when fire crews arrived. An attached to the front was not involved in fire.

Firefighters were able to access the building and extinguish the fire, but they were hampered by powerlines which were damaged by the fire and fell. The fire was contained to the building in which it began.

Both buildings were unoccupied at the time of the blaze, and McJunkin says no injuries have been reported.

The building which burned had evidently been used for storage. The structure and its contents are a total loss, though a value of loss has not been determined.

A total of 18 Casper Fire-EMS personnel responded to the blaze. They were assisted by Wyoming Medical Center, the Casper Police Department and Rocky Mountain Power.

McJunkin says additional details will be released as they become available.