A Cedar Falls Fire Rescue crew was called to Rasmussen Towing early Thursday morning, according to the Waterloo Cedar Falls Courier. A tow truck driver was returning to the shop around 2:15 in the morning when he noticed sparks and smoke coming from the building. Crews were able to prevent a fire inside from spreading. The building suffered smoke and heat damage and one tow truck was destroyed. The cause of the fire has yet to be determined.