between the province of manitoba and the united states has become the latest to be blocked, by anti vaccine mandate protesters. police say the crossing has been blockaded using both vehicles and farm equipment. this follows the blocking of the ambassador bridge that connects canada with michigan — america's car production hub. as a result, ford and toyota have halted some production. the governor of michigan has called for the bridge to be re—opened. canada's capital ottowa has been the centre of protests by truckers for several days. they're angry at the government's covid—i9 restrictions. our correspondent samira hussain sent this update from ottawa. from a lot of the people i've spoken to share over the past several days, the resolve to stay here for the long term it's really quite strong. so, from a police perspective, it does pose some sort of challenge,