Canada IS sympathiser Aaron Driver shot dead after setting off explosive

A Canadian man who had pledged allegiance to the Islamic State group in a video was shot dead in a taxi after setting off an explosive device, police said today.

Aaron Driver, 24, was killed yesterday after a tip to Canadian authorities from the US Federal Bureau of Investigation (FBI), who had intercepted the video, the Royal Canadian Mounted Police (RCMP) told a press conference.

RCMP Deputy Commissioner Mike Cabana said that yesterday they had received information from the FBI, including "a martyr video that had been prepared by an individual who at that time was unknown to us but who was clearly in the final stages of preparing an attack using homemade bombs."

Based on the information received, police believed an attack was possible "within the following 72 hours" in an "urban center," Cabana said.

Police and counter terrorism experts quickly identified the man in the video as Driver.

Meanwhile, Toronto's transit system was alerted about a "credible terrorist threat," and security was beefed up along its network of subways, bus lines and street cars used by 1.8 million people a day.

The RCMP said they intercepted Driver in Strathroy, Ontario, about 220 kilometers southwest of Toronto, outside the home where he lived with his sister, at about 4:30 pm local time yesterday.

He had just gotten into the back seat of a taxi that had just arrived.

When police approached, Driver detonated an explosive device in the back seat of the cab, causing minor injuries to the driver, before he was shot dead by officers, authorities said.

"If he had gotten out of that residence before we got there the scenario would have ended differently, I'm confident of that," commented RCMP commander Jennifer Strachan.

She said the incident could have resulted in "significantly greater loss of life."

Driver first come to the attention of authorities in June 2015. He had been arrested and released under court supervision after police received complaints of extremist posts on social media.

He was ordered to undergo counseling from a religious leader, wear an electronic monitoring bracelet and stay off the internet, but was not be surveilled, police said.

Those restrictions were gradually loosened and were scheduled to expire this month.

In interviews with Canadian media that year, he appeared to support two separate lone wolf attacks by suspected jihadists in October 2014 in rural Quebec and Ottawa. Two soldiers died in those attacks.

He also expressed a desire to travel abroad to join the Islamic State group.