OTTAWA — A 24-hour strike at two of Canada’s busiest postal sorting plants Tuesday forced delays in shipments of tens of thousands of letters and parcels across the country as Canada Post employees stepped up pressure to back their contract demands.

The one-day job action virtually shut down the Crown corporation’s sorting hubs in the Greater Toronto Area — the giant Gateway parcel facility in Mississauga, which processes roughly two-thirds of all parcels mailed in Canada, and the South Central mail plant in the city’s east end.

The walkout came on day two of rotating work stoppages by members of the Canadian Union of Postal Workers that the union has threatened to continue until Canada Post sweetens its contract proposals for rural and urban carriers.

Source: One-day Toronto strike has ‘significant impact’: Canada Post | CTV News