VIDEO: An evening fire heavily damaged an 11-unit apartment complex Monday in Muskegon. The involved apartment building is located at 1850 Valley Street, where Porter School was once located. Firefighters on scene said the fire started on the first floor and then spread up the stairs. According to a Facebook post from the Muskegon Professional Firefighters Unit, crews had water pressure issues while fighting the flames. Supply lines had to be moved to hydrants across Laketon Avenue. Firefighters on scene told us that there are currently no reported injuries and that everyone has been accounted for. However, the building has severe damage and will be demolished.