Units with the Anchorage Fire Department responded to a downtown fire Wednesday morning.

The blaze was centralized in the second floor of Mad Myrna's bar at 530 E 5th Avenue. The extent of the damage to the overall building is unclear, however the exterior has minimal damage.

Fire dispatch tells Channel 2 that it was a "minor fire."

AFD said the fire was called in at 9:04 a.m. and they had units on the scene by 9:07 a.m. 14 units in total responded to the fire, which was declared "under control" 20 minutes later.

Downtown traffic was disrupted briefly while units responded to the fire. AFD asks that people still in the area be cautious of fire department units still working on "salvage and overhaul" operations.

The cause of the fire is not yet known, but authorities have confirmed that no injuries have been reported at this time.