Regular subway service and GO Transit train service in downtown Toronto resumes Sunday morning as police work steadily to contain protest activity near the G20 summit security zone.

Toronto Transit Commission officials said buses, trains and streetcars will operate according to regular schedules. Sunday trains service begins at 9 a.m.

GO Transit coming to and leaving Union Station will begin rolling out at 10 a.m. Customers with schedule questions are encouraged to contact GO Transit call centre at 1-888-438-6646 or to view schedules at visit www.gotransit.com.

Lockdowns at each downtown area hospital were lifted Sunday morning.

On Saturday, hospitals near the march route restricted access, only allowing patients, their relatives, and staff wearing identification badges to enter, according to the University Health Network. Security guards were monitoring entrances, but patients requiring emergency care were reminded they could still access hospital services in the area.

Late Saturday night, the TTC announced that the downtown loop of the Yonge-University-Spadina line between St. George and Bloor stations, would remain closed for the night.

Streetcar service was also called off between Spadina and Broadview Avenues south of Bloor, adding to a series of previously announced route changes meant to circumvent the summit.

Although the TTC launched a free shuttle bus service to transport inconvenienced customers traveling from Bathurst station to Front St. as well as along Parliament between Castle Frank station and Front St, other regular bus and streetcar service was halted.

As peaceful march turned violent on Queen Street Saturday afternoon, businesses that had been open started closing down.

The Eaton Centre was placed on "hard lockdown" by mall security around 3:30 p.m. as an anarchist faction cut a destructive path through the area. The mall reopened for business on Sunday.

As the afternoon progressed, a concert by Dutch violinist Andre Rieu slated for the Air Canada Centre was cancelled in light of ongoing chaos near the venue.

Drivers faced their own delays as lane reductions and delays on major highways around the city as slowed traffic.

City officials and police have long warned the summit would affect transportation to and through the city.