Police in Ottawa have made 170 arrests so far as they work to clear the streets in Canada's capital city. Protests against COVID-19 restrictions have spread across Canada in recent weeks.

Police in Ottawa say they have made progress in clearing out truckers who have paralyzed Ottawa for three weeks in a protest against the country's COVID-19 restrictions.

Big rigs parked outside Parliament represent the movement's last stronghold after demonstrators abandoned their sole remaining truck blockade along the U.S. border.

Trucks rolled out of Coutts, Alberta, on Tuesday leaving just one blockade in Manitoba near the border with North Dakota.

The mayor called the situation "the most serious emergency our city has ever faced." Police are ramping up enforcement as the standoff continues.