DENVER -- Firefighters from several jurisdictions responded to a three-alarm apartment complex fire in Arapahoe County Monday afternoon.
"All the crews that arrived on scene immediately went into search and rescue operations," Denver Fire Department spokeswoman Melissa Taylor said. Smoke and fire was visible from all three floors of the building.
One Cunningham firefighter was sent to the hospital for treatment for minor smoke inhalation. He was released Monday evening. Two civilians received treatment for smoke inhalation. Four Arapahoe County Sheriff's deputies also suffered mild problems from smoke inhalation.
This started out as an offensive operation, "Which means we had firefighters inside the structure doing search and rescue," she said. No victims were found inside the building. "Once it became unsafe and they cleared the building it did turn into a defensive operation which is what you see with these aerials up above."
The approach to fighting the fire changed because firefighters inside started to see signs of structural collapse.
Many units in one of the buildings at the complex at 7777 East Yale Avenue were destroyed. It's called Reserve at Hunter's Run.
Denver Fire, South Metro Fire, and Aurora Fire assisted Cunningham Fire on this incident. There were about 75 firefighters and 18 rigs on the scene.
The Arapahoe County Sheriff's Office said East Yale Avenue was closed between South Quebec and Street and South Syracuse Way until late Monday night.
You can see the complex in the image below. The building that was on fire is circled in red.
Investigators were looking into the cause of the fire.