By Shereen Siewert Fire crews are at the scene of a report of fire at a downtown Wausau building. As of 3:50 p.m. fire trucks and other emergency vehicles remained in the 600 block of Third Street. Witnesses tell Wausau Pilot and Review smoke was seen pouring from the building, at the corner of Third and Grant Streets. No injuries have been reported and the blaze appears to be contained. This is a developing story.