Two Colorado Springs firefighters were injured Wednesday morning after crews responded to a fire at the Summit Apartments on the city's south side.

Christopher Riley, fire chief for the Colorado Springs Fire Department, said the fire was reported at 8:16 a.m.

Riley said no residents were in the single apartment at which the fire started. The two firefighters were injured when they slipped on ice at the complex, Riley said. One suffered a broken leg.

"Unfortunately we did have to firefighter injuries, thankfullly they were minor and they were taken to local hopsitals," Riley said. "Appears they slipped on the ice and it appears to be leg injuries."

Two second-level units were damaged, one by the initial fire and another by smoke. The building has eight apartments. The cause of the fire is unknown.

The department tweeted shortly before 9 a.m. that the blaze is 'under control' and contained to one upstairs apartment.

The apartments are located at 2610 Reeve Circle, which is near Lake Avenue and Venetucci Boulevard.

The first fire truck arrived at 8:20 a.m., Riley said. About a dozen firetrucks responded and at least two fire truck ladders were used. Crews were still on scene at 10 a.m.

Stay with as we update this story.