The Cedar Rapids Fire Department responded to a fire Thursday morning at First Federal Credit Union at 3810 Westdale Parkway SW.
Crews said the call came in via an alarm company from an automatic alarm activation around 3:40 a.m. Crews arrived to find smoke coming from the building.
Authorities said no one was inside.
Crews said there was significant damage to the building from the smoke.
There was no word on what started the fire.
No one was hurt.