KNOXVILLE, Tenn. (WATE) —Fire quickly spread through an apartment complex in West Knoxville because of a lack of a sprinkler system, according to Rural Metro Fire.

Firefighters responded to a two-alarm fire on Walker Springs Road in West Knoxville around 4 p.m. Tuesday, Aug. 16. Rural Metro Fire – Knox County responded to a fire at 721 Walker Springs Road.

The fire resulted in the building being a total loss, with some units in the next building being affected as well. The two buildings are connected by a breezeway. Rural Metro reported that one reason for the fire’s quick spread was that the building lacked a sprinkler system, as it was built before the code required sprinkler systems.

Rural Metro spokesperson Jeff Bagwell told WATE at the scene that all occupants are accounted for, but the status of any pets is unknown at this time. The Red Cross is assisting families and individuals impacted by the fire with shelter.

A dozen fire units were called between 2 alarms, with over 40 firefighters, two AMR ambulances, and multiple KCSO units responding according to the fire department.

Bagwell said that it is always a good time to remember to check smoke detectors and ensure that they are operational.

A large smoke cloud from the fire is visible on West Knoxville traffic cameras.