A fire that tore through the Baltimore Collegiate School For Boys Saturday caused significant damage to the building and forced the school to cancel its final week of classes. In a message on its website, the school said all remaining school days and year-end activities are cancelled. Summer school will begin at their new location on July 10. Officials tell WJZ firefighters saw heavy flames coming from the building when they arrived around 9 p.m. Saturday to battle the blaze. No injuries have been reported. In a post on their Facebook page Friday, school officials warned of a potential gas leak at the building and canceled classes. Officials have not yet said if the gas leak and the fire may be connected.