The US Embassy was also locked down after reports of shots being fired. The US and Canadian air defenses were placed on heightened alert after the shootings.
Canada's Parliament came under attack today with a barrage of gunshots fired both inside and outside the building as a soldier was killed in the assault and a man with a rifle was gunned down by security forces.
Parliament Hill came under attack when a man with a rifle shot a soldier standing guard at the National War Memorial in downtown Ottawa, before seizing a car and driving to the doors of building's Centre Block nearby.