tweets:, external More police vehicles racing up to Confed Building. #cdnpoli. See photo, external

tweets:, external Reports coming in there could be as many as FIVE active shooters involved.

To recap, at the moment we understand that a gunman has been shot dead inside the parliament building in Ottawa. This followed a soldier being shot near the war memorial close to parliament. The soldier was pictured being treated at the scene, but it's unclear what his condition is. There are also reports that there could be more gunmen still in the area. Police are understood to be expanding the area under lockdown in the city.

@allen_26er tweets:, external My office is on lockdown. One shooter is still on the loose downtown.

Local media are now reporting that one gunman was killed after being shot in the parliament building.

@brenthazelton tweets:, external Apparently the second shooter is down. #parliamenthill #shooter #cdnpoli

@BariLeia a student at Ottawa university tweets:, external I'm scared. Can hear sirens everywhere.

tweets:, external Police have moved the crowd further east away from Hill. Situation appears tense. See photo, external

David Palmer: All government buildings in the capital are under lockdown.

@crimegarden tweets:, external Police have been ordered to track two more possible suspects, one fleeing on foot near Chateau, the other on motorbike. Ottawa

Marianne Lampon: I'm a University of Ottawa student and the university has been in contact with every student very efficiently notifying us about the shooting and we have since received messages informing us the campus is on lockdown. I am at home at the moment but I have friends on campus who are saying that lights have been turned off and no-one is allowed in or out of buildings, blinds have been drawn and any possible doors locked.

tweets:, external Someone skimmed by bullet on Queen Street, downtown. Could have been from original shooting near War Memorial.

There are reports now that police may be involved in a high-speed chase with one of the suspected gunmen, although this is unconfirmed.

tweets:, external Global News cameraman reporting shots fired by Chateau Laurier hotel #ottawa

tweets:, external On my way to my car and was asked by the police to take shelter. #ottawa

One witness has spoken to AFP news agency describing what appears to be the moment captured in the Globe and Mail video, external. Marc-Andre Viau, who works at the parliament, said he saw a man run into a caucus meeting in the building, chased by police who yelled "take cover". That was followed by "10, 15, maybe 20 shots," possibly from an automatic weapon, he said.

tweets:, external One shooter shot dead inside centre block #ottawa HofC suspect others still on the loose more shots fired #cbc

The Globe and Mail have published video, external of the moment one of the gunmen entered the parliament building, showing an exchange of fire. Police patrolling the building appear to come across a gunman and several bursts of gunfire can be heard after one loud shot.

tweets:, external Guy was 5ft 9-10ins, overweight, black jacket and a long rifle. He had a scarf covering his face and headed toward the common lawn #cdnpoli