Canadian officials are threatening protesters blocking the Ambassador Bridge with “severe” consequences, including fines, imprisonment and revoked licenses.

Windsor officials are seeking an injunction to end the “illegal occupation” of the Ambassador Bridge, and the city’s mayor said protesting truck drivers “will be removed,” if they don’t leave voluntarily.

The mayor of Windsor spoke about the Ambassador Bridge blockade Thursday as trucker demonstrations continued to stall traffic between Detroit and Canada.

Michigan Gov. Gretchen Whitmer released a statement Thursday calling on Canadian authorities to resolve the Ambassador Bridge closure.