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Security operations are in force in Canada as leaders of rich and developing nations attend the G8 and G20 summits.

The of leaders from France, Germany, Italy, Japan, UK, US, Canada and Russia is being held at the Deerhurst Resort on the outskirts of Huntsville, 215km (133 miles) from Toronto.

The resort is closed to public, with restrictions in force on local roads, the nearby Peninsula Lake, as well as airspace closures.

A ring of steel has gone up around the Metro Toronto Convention Centre area for the which will take place after the G8 summit.

The "lockdown" of central Toronto includes a 3m-high (10ft), 3.5km (2.2-mile) concrete and metal fence enclosing the G20 meeting area and a huge security presence. Banks and theatres will be closed, as will one of Canada's most famous tourist attractions - the CN Tower.

The responsible for security over the summit period of 25-27 June, is made up of Royal Canadian Mounted Police, regional and city police and the Canadian military forces.

Many Canadians have balked at the of hosting the summit.