GUNFIRE has echoed through the halls of the Canadian Parliament, following the shooting death of a soldier in the National War Memorial nearby.
People scrambled to safety, barricading themselves inside rooms, as heavily armed police stormed through the building.
Authorities had raised the security threat level from low to medium after the car attack, which came as Canadian jets were to join the US-led air armada bombarding Islamist militants in Iraq.
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One male shooting has been killed while authorities continue to search for more suspects.
Video footage posted online showed police ducking for cover as they advanced along a hallway, loud gunfire echoing among parliament’s stone columns.
Witnesses at the scene said they saw a man armed with a rifle running into parliament after shooting a guard at the war memorial.
There’s still no word as to what motivated the attack.
In the United States, President Barack Obama condemned the attack, labelling it “outrageous”.
He offered to help his neighbouring country with their response.
The White House says Obama spoke by telephone with Prime Minister Stephen Harper following the attack in Ottawa.
MORE AS IT COMES TO HAND.
EARLIER: THERE have been gun attacks at three separate locations in Canada overnight.
A soldier was shot at the War Memorial and later died from his injuries. Gunmen also opened fire at Parliament House in Ottawa, with up to 50 shots reportedly fired.
Vision has been released showing politicians barricading themselves in behind a big heavy door.
The pictures snapped by a fellow Member of Parliament.
A third shooting was carried out at a shopping centre.
Authorities are not revealing whether there are terror links at this stage but one gunman was shot dead by security, another remains on the run.