OTTAWA  – ****** are expanding a perimeter around Parliament Hill after a ****** opened **** at the National *** Memorial, wounding a soldier, then moved to nearby Parliament Hill where he was reportedly shot by Parliament’s sergeant-at-arms after wounding a security guard.

The Hill remains under lockdown amid reports there may be two to three shooters, according to a senior official locked in the Official Opposition Leaders’ office.

****** say they are investigating “several ******** ********* in downtown Ottawa.”

The Langevin Block, home of the Prime Minister’s Office across the street from Parliament Hill, has now been evacuated and citizens are being moved back more than two blocks from the Parliamentary precinct.

****** herded bystanders off the street into a major office building and warned people to stay away from the windows.

Conservative MP Bob Zimmer has tweeted that a ****** was shot and ******, but that report was not immediately verified by ******.

Two sources told The Canadian Press that Kevin Vickers, the sergeant-at-arms for the House of Commons, shot an assailant.

Prime Minister Stephen Harper was rushed away from the building to an undisclosed location, officials in his office said.

Ottawa ****** confirmed they had a call at 9:52 a.m. with a *************** *****.

At least one ****** reportedly ran towards Parliament Hill, which is currently under lockdown and surrounded by security.

Cabinet minister Tony Clement tweeted that at least 30 ***** were heard inside the building, where Conservative and Liberal MPs were holding their weekly caucus meetings.

Most of those MPs remain locked down in their caucus rooms.

The NDP caucus was evacuated along with the Liberal Senate caucus.

Karl Belanger, a senior aide to NDP Leader Tom Mulcair, says security told them to remain locked in the Opposition leader’s office as there may be two or three ******.

A witness reported that a man drove up in a black vehicle, got out carrying a rifle and ran into the Centre Block _ the seat of the House of Commons under the Peace Tower.

The vehicle, with no rear licence plate, parked directly in front of the Langevin Block.

Witnesses report seeing a man dressed in black with a scarf wrapped around his face, carrying a double-barreled shotgun

***** were ***** in several different corridors inside the Centre Block, according to witnesses. Some people fled the building by scrambling down scaffolding erected for renovations.

Chuck Bronley of Ottawa said he was near the memorial when he heard four ***** and saw a man running away carrying what he said was a rifle.

A tourist from the Netherlands was also nearby when he heard four *****, and saw an ***** man with long, dark hair fleeing.

****** were yelling at bystanders, shouting that there was still a shooter on the loose.

“DND member is down,” one officer was overheard saying.

Bronley was fairly certain the ****** was one of the ceremonial guards at the *** Memorial.

Two people vigorously pumped the ******’s chest on the stairs of the *** Memorial, until the ****** was finally placed on a stretcher and ushered into an ambulance shortly after 10 a.m.

The ******** comes just two days after two Canadian soldiers were run over  – and one of them ******  – in Quebec by a man with jihadist sympathies.