The Colorado Springs Fire Department (CSFD) has determined a three alarm fire at an apartment complex last month was accidental.CSFD says the fire was caused by smoking materials. No injuries were reported, according to CSFD.Background InformationCSFD is responding to a serious apartment fire on the morning of September 26. According to the department, two floors of The Vue at the Spring Creek Apartments are on fire. The apartment complex is located on the southeast side of Colorado Springs near Circle Drive and Monterey Road. The department says a third alarm has been called on this fire. _______Watch KOAA News5 on your time, anytime with our free streaming app available for your Roku, FireTV, AppleTV and Android TV. Just search KOAA News5, download and start watching.