Canadian truckers are snarling traffic on a second border bridge as lawmakers and police grow increasingly concerned. Reports from Wednesday showed trucks are arriving at the Blue Water Bridge in Port Huron, Michigan, which is about an hour away from the currently closed Ambassador Bridge.

Ontario Police requested more resources to deal with the growing protest, while the country’s transportation minister warned the shutdown will have severe economic consequences. Despite this, Prime Minister Justin Trudeau has refused to back down even as members of his own party called for changes to COVID restrictions.