TORONTO, CANADA (NBC) - Toronto mayor Rob Ford says a bomb threat was made against him and his brother.
A bomb-sniffing dog was brought through Ford's office, after he said an e-mail bomb threat came in and urged him to resign.
Ford said the e-mail warned him and his brother, City Councilor Doug Ford, they had "to vacate" the office, otherwise "City Hall will blow."
Ford returned to work just over a month after a two-month stint in rehab for drugs and alcohol.
He admitted last year he had smoked crack in a what he called a "drunken stupor."
Ford is seeking re-election this October.