DENVER -- Part of an apartment building collapsed early Wednesday morning after a fire broke out.
Firefighters battled the intense fire that started about 1:30 a.m. at East 37th Avenue and Marion Street in northeast Denver. Most of the roof and second story of the building collapsed and is now in shambles. Brick and debris cover the streets around the building.
Firefighters got to the building and were encountered by heavy smoke and flames coming from the second story. It's not clear how many people were inside but firefighters say all residents were already out of their apartments when they arrived.
Garrett Firestone, who does not live in the building, recorded the fire as it broke out and posted the video to his Facebook page.
The fire was so intense that after 10 to 15 minutes inside, firefighters had to get out and fight it only from the outside.
While firefighters were battling the blaze, most of the second story collapsed and now only one side of the building is standing. Engineers will determine if it's safe for investigators to go inside to find out what causeed it.
The building has six to eight units. There are no reports of injuries.