Anchorage firefighters are responding to a duplex fire in East Anchorage on Tuesday evening.
Shortly before 7 p.m., crews received calls for the blaze, which was isolated to one home on the 5600 block of Alora Loop.
According to fire dispatch, 13 units are battling the blaze and an additional 7 units, including engines and medics were also called to the scene in case the blaze spread to other homes.
There were no initial reports of any injuries.
Fire dispatch says traffic near Boniface Parkway and East 4th Avenue may be affected since crews are responding to the fire.
Several neighbors told Channel 2 News off-camera that they heard an explosion and watched a home owner come out of the garage with his pant leg on fire before he jumped into a snow-bank to douse the flame.
Firefighters say they respond to fires with reported explosions with a different frame of mind.
There's a lot of things that can sound like an explosion, things can be interpreted as an explosion; it can be propane bottles,” said AFD Capt. Danny Costanios. “You definitely prepare for the worst - it changed out mentality, makes us a little more alert when we arrive.”
The cause of the blaze was not immediately known.