Canadian police 'kill suspect in anti-terror operation'
The Royal Canadian Mounted Police (RCMP) would only say that "action has been taken" against a lone suspect.
Canadian media said police had raided a property in Strathroy, about 225km (140 miles) south-west of Toronto.
They named the suspect as Aaron Driver, 24, who was arrested last year for openly supporting so-called Islamic State on social media.
'Potential threat'
A senior police official told the Canadian Press news agency that the suspect allegedly planned to use a bomb to carry out a suicide bombing mission in a public area.
An internal government memo seen by the CTV network says his alleged plan was to use a homemade bomb create mass casualties.
The RCMP statement said it had received "credible information of a potential terrorist threat".
"A suspect was identified and the proper course of action has been taken to ensure that there is no danger to the public's safety," it added.
"As this is still an unfolding matter and the investigation is still under way, we are not able to provide further comment at this time."
CBC News said Aaron Driver's family had confirmed his death.
It said that police had told the family that Driver had detonated an explosive device, injuring himself and another person.
Driver was intending to detonate a second device and that was why police shot him, the report said.
Source: bbc.com