The busiest US-Canada border crossing was open Monday after protesters demonstrating against Covid-19 measures blocked it for nearly a week, but a larger protest in the capital, Ottawa, persisted as city residents seethed over authorities’ inability to reclaim the streets.

Demonstrations against Covid-19 restrictions and other issues have blocked several crossings along the U.S.-Canada border and hurt the economies of both nations. They also inspired similar convoys in France, New Zealand and the Netherlands. The U.S. Department of Homeland Security warned that truck convoys may be in the works in the United States.