"The images circulating are worrying. This investigation should shed light on the entire intervention," the Montreal mayor said.
The biofuel used for Tuesday's flight was "made from waste and residue sourced from the circular economy," according to Air France-KLM.
In Canada, several thousand anti-mask protesters gathered in Montreal and Vancouver, criticizing the country's response to the novel coronavirus pandemic.
In an effort to prevent a second wave of COVID-19 affecting Quebec, officials for the city have approved new rules that will allow police to issue fines for people who don't wear masks in public places.
The Montreal-based company said that more than 4,000 people would lose their jobs, but were ready to rehire people when productions resume.
Abdelhaq Sari, the vice chairman of Montreal's Public Security Committee, was barred from attending a Montreal police conference, and says he was outraged by his treatment.
Montréal offers a feast for the senses. Find out where to spend you time in Canada's cultural capital.
A Montreal-area gym was the scene of deadlifting drama last week that led to one staff member getting suspended after a random member attacked another he thought was being too loud.
The USS Little Rock left Montreal this weekend and is expected to reach its home port in Florida by the end of April.
The passenger was apparently so unruly that North American Air Defense scrambled fighter jets to assist.
The caves have eerily straight walls and ceilings, and sections are full of water.
Commerce Secretary Ross and Trump have targeted Canada's dairy and softwood lumber industries.
Stroll took advantage of the chaos on the Baku city circuit.