At least three people were killed and two others injured in a fire that broke out at a warehouse in Quezon City, in Philippines' national capital region, before dawn Thursday, local media reported. The fire reached the second alarm before firefighters put it out at 1 a.m. The fatalities were initially identified as a 36- year- old man and his 8-year-old son. The two injured were soon rushed to a nearby hospital. An initial investigation showed the fire started at the warehouse in San Francisco del Monte in Quezon City, and spread to two nearby houses. Arson investigators said they are looking into the possibility that a short circuit or a candle left unattended caused the fire. A witness said there was a brownout in the area shortly before the fire broke out. 