AURORA, Colo. — A Regional Transportation District (RTD) light rail train derailed at the intersection of Exposition Avenue and Sable Boulevard in Aurora Wednesday, Sept. 21 leading to multiple injuries and road closures.

Video shows the train derailing as it goes around a corner. The derailment led to two of the train cars becoming unhooked. The official cause of the derailment is still being investigated, but the video appears to show the train operator taking the turn at too high a speed.

Rocky Mountain PBS reached out to RTD about the cause of the derailment and if the operator is facing any disciplinary action. A spokesperson said the crash is still being investigated, and that the official cause won't be determined until the investigation is complete.

The incident occurred on RTD’s R Line around 4 p.m. Aurora Fire Rescue said three people were taken to the hospital, but that their injuries were non-life threatening.

The intersection was closed for “an extended time,” Aurora Fire Rescue said.

Shuttle buses replaced the R Line while the accident was being cleared. To sign up for RTD service alerts, click here.