MOTT HAVEN, Bronx (WABC) -- There were no reports of injuries after a gas explosion in the Bronx caused a partial collapse of a high-rise apartment building on Wednesday morning. The explosion is believed to have occurred in the boiler, which collapsed the chimney structure, officials said. WATCH VIDEO OF THE EXPLOSION AND COLLAPSE:New video shows the Bronx building partially collapse after a gas explosion. The explosion collapsed the shaft of the 17-story building, which appeared to be an entire corner of the high-rise. A birds eye drone photo provided of the partial building collapse in the Bronx by the FDNY.