A fire on the fourth floor of the Grand Traverse Resort and Spa was put out quickly Saturday afternoon.
The Grand Traverse Metro Fire department responded to the alarm at about four p.m.
Firefighters contained the fire to the room where it began.
They say it started in a room heating unit, but what caused it is still under investigation.
Once the fire was extinguished, guests were back in their rooms within an hour.
No one was hurt.