The plane could been seen on the roof at Woodbine Ave. and Hooper Rd., engulfed in flames. A four-seater plane has crashed into the roof of an office building in Markham, Ont. Witnesses said the Cessna aircraft began trailing smoke soon after its takeoff from nearby Toronto Buttonville Municipal Airport shortly before 12:30 p.m. ET. It made a hard right turn and rolled before it crashed into the roof of the two-storey building, they said. The plane could been seen on the roof at Woodbine Ave. and Hooper Rd., engulfed in flames. Though there have been no reports of deaths or injuries, there are "slim survivability chances" for those onboard, Markham fire Chief Bill Snowball told CBC News. Police evacuated the building, located at 8885 Woodbine Ave., while firefighters from departments in Markham and Toronto tackled and later extinguished massive flames. By 1:56 p.m., firefighters had completed primary and secondary searches of the site and confirmed everyone had been evacuated safely, Snowball said. Boyd did not say what may have caused the crash. Weather was not believed to be an issue. The plaza is less than a kilometre east of the airport, one of Canada's 10 busiest airfields. Its address is linked to Thinkway Toys, which manufactures and distributes toys internationally for Disney and Warner Bros., among others, according to Industry Canada. Calls to the company were met by static and then cut off.