One soldier was killed Wednesday morning after at least one gunman opened fire at two locations near Parliament Hill in Ottawa, Canada. UPDATE: One gunman is dead, though police believe another suspect may remain at large.

The soldier was shot while guarding Canada's National War Memorial. From the Globe and Mail:

Eyewitnesses said an armed man with long black hair emerged at the National War Memorial, fired about four times‎, and a guard went down. The gunman, who an eyewitness said was carrying what appeared to be a rifle, then ran toward Parliament Hill.

There are also reports of a body in front of the Parliamentary library, where witnesses said they heard "dozens of shots."

Police said the gunman was "5"9-5"10, overweight & wearing a dark jacket." Other witnesses described the shooter as a "little man."

The gunman is now reportedly on one of the Parliament buildings' roofs, and most of downtown Ottawa—including the University of Ottawa, the Ottawa Public Library's main branch, CBC News headquarters in Ottawa, the Rideau Centre, the Ottawa courthouse, and the Ottawa police headquarters—is in lockdown.

UPDATE 11:33 am: Police now say there are multiple suspects.

There are also reports of a third shooting near Rideau Centre Mall, which is within walking distance of Parliament Hill.

UPDATE 12:16 pm: One gunman was killed inside of Parliament. From the CBC:

Parliament Hill came under attack today after 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 Parliament Hill's Centre Block nearby.

MPs and other witnesses reported several shots fired inside Parliament, and a gunman has been confirmed dead inside the building. The soldier's condition is not known as this time.

UPDATE 1:38 pm: The soldier has died. Two other people were taken to a hospital and are in stable condition.

The attack took place one day after another soldier was inteinonally killed in a hit-and-run and five days after Canada raised its terror threat level to medium

UPDATE 5:22 pm: The suspected shooter has been indentified as Michael Zehef-Bibeau, a 32-year-old Canadian. The soldier was also identified. From the Globe and Mail:

The soldier that was killed was identified as Cpl. Nathan Cirillo, according to his aunt. Cpl. Cirillo, who was a member of the Argyll and Sutherland Highlanders, a regiment of Reserve Forces based in Hamilton, was training to join the Canada Border Services Agency, his aunt told The Globe and Mail.

Police also said reports of a shooting at Rideau Centre Mall were false.