Puyallup police are investigating an arson that destroyed an old, vacant Pioneer Museum building early Sunday morning.

Crews responded around 4 a.m. to a reported structure fire in the 2100 block of 22nd Street Southeast. Firefighters found heavy flames coming from a building that was 80 feet by 150 feet. The flames did not spread to adjacent structures, but it took firefighters more than two hours to extinguish.

There were no injuries, and the building was a total loss.