(West Des Moines, IA) – Firefighters in West Des Moines were called to the scene of a three-alarm house fire last night. It happened along 32nd Street near Valley West Drive. Authorities say, the blaze began as a structure fire but quickly was upgraded to a three-alarm fire. Four people were inside the home at the time. All managed to get out safely. No injuries were reported. The cause of the fire remains under investigation.