A power outage has left large areas of Toronto in the dark amid a royal visit by the Queen and Prince Philip.
A fire at a transformer station in Canada's largest city caused the outage on late Monday afternoon during a heat wave in the region.
Ontario electric company Hydro One said that about 240,000 customers were affected, and that the cause is under investigation.
Prince Philip was presenting the Duke of Edinburgh Awards, part of a programme that encourages youth to participate in community service, when the lights went out at the Royal York Hotel.
He continued presenting the awards in a dimly-lit room.
Full power was restored just before a dinner with the Queen, the Duke of Edinburgh and Canada's prime minister Stephen Harper was scheduled to start.