Multiple 'suspicious' fires were fought by Gary and aiding crews overnight throughout the city, officials said. Most of the structures were believed to be abandoned buildings. Video shows crews fighting flames near the 2500 block of Washington Street, 800 block of Pennsylvania Street and 500 block of Tompkins Street. GARY â Authorities said Tuesday the federal Bureau of Alcohol, Tobacco, Firearms and Explosives would assist the Gary police and fire departments with their investigation into two recent rashes of suspicious fires. Firefighters from Gary and departments in Lake and Porter County worked feverishly Saturday night into early Sunday to extinguish blazes at 17 vacant buildings in 11 different locations, mostly in the Midtown and downtown areas, Fire Chief Sean O'Donnell said.