A second RCMP officer has been confirmed dead in Haiti, bringing the Canadian death toll following Tuesday's quake to eight.

The body of Supt. Doug Coates was found amidst the rubble of the Haitian capital of Port-au-Prince, the RCMP said.

Coates was among a group of officers from Canada who were mentoring police in Haiti. Sgt. Mark Gallagher, 50, was confirmed dead earlier in the week.

RCMP Commissioner Bill Elliot called both officers heroes on Saturday.

"In their effort to better the lives of others, Supt. Doug Coates and his colleague Sgt. Mark Gallagher willingly made sacrifices and ultimately gave their lives for this noble cause." Elliott said.

Elliot had travelled to Haiti twice with Coates and said he witnessed the man's passion for making a difference in Haiti.

"He really loved the people and he really felt that we were making a positive difference there," he said of Coates.

Coates was the father of three and was in charge of the deployment of Canadian police officers on missions around the globe. At the time of his death, he had been the acting commissioner of operations for the UN's stabilization mission in Haiti.

His body was recovered Saturday at the UN headquarters, as well as those of Hedi Annabi, who was in charge of the U.N. peacekeeping mission, and Annabi's deputy, Luiz Carlos da Costa.

UN Secretary-General Ban Ki-moon said of Coates: "He was a true friend of Haiti and the United Nations . . . He was a great police officer who believed to his core in the importance of rule of law and justice."

Earlier in the day, it was announced that a Quebec professor was found dead in the rubble in the Port-au-Prince University. Denis Bellavance, from Drummondville, Que. was lecturing at the university.

Also on Saturday, the Canadian International Development Agency confirmed that two of its staff died in the massive earthquake that has devastated Port-au-Prince.

CIDA employee Guillaume Siemienski and consultant Helene Rivard were both killed in the quake, Bev Oda, Canada's minister of international co-operation, said in a statement released on Saturday.

"I was deeply saddened to learn of the deaths of Mr. Siemienski and Ms. Rivard," Oda said in the statement.

"They will be remembered for their long-standing commitment to development and to improving the lives of Haitians. Our thoughts and prayers are with their families."

Siemienski was a development officer at CIDA on assignment to the United Nations, who had been with CIDA since 1999. Rivard had worked with the organization for more than 20 years.

Siemienski's sister said he was drawn to humanitarian work because his talents were best put to work when he was helping others.

"He was the sunshine of the family," Maja Siemienska told The Canadian Press. "It's night time without him."

"He didn't want to do bureaucratic work, he wanted to do something positive, something concrete."

Prime Minister Stephen Harper also released a statement after learning of the deaths of the two CIDA workers.

"Their deaths are a reminder of the sacrifice Canadian men and women like Siemienski and Rivard are willing to make in order to bring Canadian generosity and aid to Haiti and the world," he said.

"On behalf of all Canadians, Laureen and I would like to offer their families and friends our profound sympathies. Our thoughts and prayers are with them during this difficult time."

Foreign Affairs Minister Lawrence Cannon announced Saturday morning that more than 1,300 Canadians are still missing in the aftermath of the quake.

Cannon also said 781 Canadians have been located in Haiti, 460 Canadians have been evacuated to Canada and 50 Canadians are taking shelter at the Canadian Embassy in Port-au-Prince.

With files from The Canadian Press