A roof has partially collapsed at a busy shopping mall in Canada, prompting an evacuation and a search for anyone who might have been injured.
A portion of the roof that serves as a parking area crumbled, exposing metal and concrete supports as Algo Centre Mall in northern Ontario bustled with weekend shoppers.
The collapse also triggered a gas leak and prompted emergency officials to shut off the mall's power.
A state of emergency has been declared.
A store employee said several cars appeared to have fallen through the gaping hole near some escalators.
