Toronto mayor's press advisers latest to leave amid purported crack cocaine smoking video

Toronto Mayor Rob Ford's press advisers are the latest to leave their jobs as questions swirl about a missing video that purportedly shows the mayor smoking crack cocaine.

A statement from the mayor's office Monday says press secretary George Christopoulos and deputy press secretary Isaac Ransom are no longer employed. Ford fired his chief of staff last week.

Ford hasn't taken questions from reporters since the story broke May 16.

The video has not been released publicly, and its authenticity has not been verified. Reports on gossip website Gawker and in the Toronto Star said it was taken by men who said they had sold drugs to Ford. The Star reported that two of its journalists watched the video.

Ford says there is no video and calls the allegations ridiculous.