Halifax Regional Police and Nova Scotia RCMP officers will be among those saying goodbye on Tuesday to the three New Brunswick RCMP officers killed in last week's shootings in Moncton.

An estimated 7,000 RCMP officers and first responders from across North America are expected in the city to pay their respects during the regimental funeral for Const. Fabrice Georges Gevaudan, Const. Douglas James Larche​ and Const. Dave Joseph Ross.

Live coverage of the funeral on Tuesday:

Coverage of the funeral for the three slain RCMP officers will air on CBC Television and CBC News Network starting at 12 p.m. AT on Tuesday.

The service will also be live streamed on www.cbc.ca/ns and be carried on CBC Radio One at 1 p.m. AT.

It's scheduled to begin at 1 p.m. AT at the Moncton Coliseum following a procession.

Members of the Halifax Regional Police traffic unit left their Gottingen Street headquarters on Monday morning to head to Moncton to help with security.

"They're going to Moncton to assist in securing and escorting the funeral procession and the VIPs," said Const. Pierre Bourdages.

Other police officers will head out Tuesday — not to work, but to mourn. Nova Scotia Premier Stephen McNeil, Justice Minister Lena Diab and Minister of Municipal Affairs Mark Furey — a former RCMP officer — are also planning to attend.

They will be joined by Governor General David Johnston, Prime Minister Stephen Harper and NDP Leader Tom Mulcair.

"We will be sending a large contingent of officers and employees. I will be going," said Sgt. Alain Leblanc, a spokesman for the Nova Scotia RCMP.

Halifax Regional Police traffic unit head to Moncton

Members of the Halifax Regional Police traffic unit left their Gottingen Street headquarters on Monday to head to Moncton to assist with Tuesday's funeral service for the three fallen RCMP officers. (CBC)

"It's time for us to mourn the loss of our comrades."

A private interment for the three officers will follow the public ceremony.

A wave of support

There has been a wave of support for the RCMP from New Brunswickers. A call for families to billet visiting officers had to be suspended due to a response the RCMP called "overwhelming."

Leblanc said Nova Scotians have also been showing their gratitude.

"Here in this province the support has been just as great. Very touching," he said. "It almost recharges your batteries."

Halifax Regional Fire and Emergency also said they are sending 25 firefighters to Moncton and will march to the service with thousands of other first responders.

CBC News will carry the service live on CBC Television, CBC News Network starting at 12 p.m. AT and CBC Radio One starting at 1 p.m. AT. The service will also be livestreamed at www.cbc.ca/ns.