Flames tore through an abandoned home on the 3800 block of Thompson Avenue early Friday morning, scorching the tiny cabin before collapsing under a jet of water from a fireman’s hose just after 5:20 a.m.

There were no injuries reported in the fire, according to an Anchorage Police Department officer on scene. The Anchorage Fire Department received the call at 5:14 a.m., and crews arrived on scene within four minutes, according to AFD Assistant Chief Erich Scheunemann. A dozen engines, command and support units responded to the blaze, Scheunemann said, and crews remained on scene for more than an hour, pulling charred wood from windowsills as smoke poured from the roof.

The burned home had no permanent residents. For months before the fire, boards covered the its windows and a padlock secured the front door. Another door swung open, latch broken. The cabin has been vacant for more than a year; its owner, Mountain View resident Don Nelson, died in April.

The cause of Friday’s fire remains under investigation, according to AFD.