At least three families were displaced, but no one was injured on Sunday during a fire at the Summerhill Apartment Complex in the 10600 block of Southeast Carr Road.

The first call came in around 5 p.m. and according to Deputy Chief Erik Wallgren, first responders saw a “thermal column” of black smoke rising from the scene, which indicates a larger, working fire, and upgraded the call to two alarms.

Upon arrival, firefighters saw flames coming from a second-floor unit that were extending to the third and fourth floors of the building. Firefighters were able to douse the flames from the outside first before battling them inside. In total, more then 50 firefighters from Renton and surrounding jurisdictions responded.

According to Wallgren, the fire was extinguished in about 30 minutes, though firefighters remained on scene dealing with hot spots for several hours.

The cause of the fire is still under investigation.