Wild video captures apartment complex electrical room explosion as firefighters investigate smoke call

An explosion erupts at a Tacoma, Washington, apartment complex while firefighters investigate reports of smoke, sending crews scrambling for safety.
Officials say firefighters were responding to an electrical transformer malfunction when an explosion occurred in an electrical room about 20 minutes after they arrived.
Eight buildings were evacuated. Authorities say no firefighters or residents were injured, and the cause remains under investigation.