kept under lockdown.<ref> "Hospitals prepare for G20 casualties," CBC News. June 24, 2010; excerpt, hospitals "...ready to handle any emergencies resulting from downtown protests during the G20 summit;" tents were erected outside the entrances of downtown hospitals; decontamination stations set up to treat people affected by pepper spray, tear gas, etc.</ref> The escalating violence caused Dutch violinist André Rieu to cancel his concert at the Air Canada Centre at the last minute. The Toronto Transit Commission (TTC) suspended bus, subway and streetcar services in Downtown Toronto. GO Transit suspended bus and rail services to Union Station. Tear gas was used for the first time in the history of Toronto, being deployed in a few locations by muzzle blasts. Rubber bullets and pepper spray were also used against many protesters. At the end of the day, Toronto Police Service chief Bill Blair announced that 130 people had been arrested. Several media personnel, including a Canadian reporter for The Guardian, a CTV producer, and two photographers for the National Post, were also arrested. Condemnations of the violence were made by Ontario premier Dalton McGuinty and Toronto Mayor David Miller. In a press conference, Miller said, "All Torontonians should be outraged. They're criminals who came to Toronto deliberately to break the law. They are not welcome in this city." Referring to damage caused by black bloc protesters downtown, he claimed that calling the attackers protesters was "not fair to the people who came to [legally] protest," and that they were in fact "criminals." In a statement, Dimitri Soudas, spokesperson for Prime Minister Stephen Harper, proclaimed, "Free speech is a principle of our democracy, but the thugs that prompted violence earlier today represent in no way, shape or form the Canadian way of life." June 27: Police brutality protests Approximately 480 arrestees were taken to the Eastern Avenue temporary holding centre during the previous day's protests; police initially gave numbers ranging from 32 to 130. While those with minor charges or dropped charges were released, those with serious charges were set to appear in a courthouse located on Finch Avenue and Weston Road in North York.http://www.winnipegsun.com/news/g20/2010/06/27/14539176.html Arrests a 'catch-and-release program' After closed services throughout the night, the following morning saw the resumption of regular TTC and GO Transit services, while G20 leaders began formal discussions at the Metro Toronto Convention Centre. Lockdowns at University Avenue hospitals and the Toronto Eaton Centre were also lifted.