TORONTO -

Police on bicycles, horseback and in riot gear will be at the ready in Toronto during the G20 summits -- and those will just be the ones you can see.

The Integrated Security Unit gave a demonstration of the massive security operation today.

Several rows of police officers with different equipment will be on hand at a moment's notice if they decide public safety is at risk.

"Some Integrated Security Unit members will be seen on the streets of Toronto," said Toronto police Const. Wendy Drummond.

"Others will be harder to spot. Some will be looking from above and some will be on the waterways."

The media was shown a formation with bicycle officers in front, followed by those in riot gear backed up by police on horseback.

Dozens of closed-circuit cameras have also been placed throughout the downtown core.

Police also gave a demonstration of their controversial sound devices at half capacity, and the so-called sonic cannons could barely be heard over a crowd of dozens of journalists.

The devices, if needed, would only be used for between two and five seconds, Drummond said.

"Any interaction police have with demonstrators will be measured," she said.

"All security planning is done to ensure the safety and security of internationally protected persons, summit staff and dignitaries and the people who work (in), live (in) and visit Toronto."

The G20 runs from June 26-27.