A fire in Stevens Point early Saturday morning did extensive damage to an apartment building. Fire crews were called to the blaze on Indiana Avenue at 3:30 a.m. after smoke was reported to be coming from the roof of the building. Firefighters were able to contain the fire to a single apartment. A guinea pig and a gecko were rescued in the process. There were no injuries, and damage was said to be about 45-thousand dollars. The cause of the fire is under investigation.