Toronto Mayor Rob Ford began a leave of absence and headed for a rehab center Thursday, leaving his scandalized city in the dark about his political future after a report surfaced of a second video of him apparently smoking crack cocaine.

Ford announced Wednesday that he would take leave for an unspecified amount of time from both his mayoral post and his reelection campaign, but he did not abandon his bid for a second term as mayor of Canada's second-largest city. One of his campaign rivals and other Toronto politicians demanded he resign. Toronto police said they were looking into the new video, which was reported by the Globe and Mail newspaper.

- AP