Last updated at 9:30 p.m. on Friday, Jan. 6

Nineteen units with the Anchorage Fire Department responded to a blaze at the Alpine Apartments Friday evening, according to AFD’s deputy chief Jodi Hettrick.

The active fire was reported at 7:18 p.m. According to Hettrick, the fire was on the third floor of one of the buildings, located at 5410 Mockingbird Drive, which was evacuated. After the blaze was out, AFD Capt. Mark Stephens said the two-alarm fire originated in the stairwell.

Stephens was optimistic that all residents would be able to spend the night in the building.

The cause of the fire is under investigation.