Canadian police say nine people are dead and 16 are injured after a van mounted the kerb and hit a crowd of pedestrians in Toronto.
The vehicle hit pedestrians at high speed at a busy intersection in the north of the city as large crowds of office workers were on lunch breaks.
At least one witness described the driver as appearing to deliberately target victims as he drove for roughly 1.5 kilometres.
The driver has been taken into custody.
Toronto Police spokeswoman Meghan Gray said the van apparently jumped the kerb, but it was not immediately clear if the incident was a deliberate act.
"At this point it's too early to tell what if any motive there was," Toronto police spokeswoman Meaghan Gray said.
A witness told Canadian Press that he saw police arresting a man who had been driving a Ryder rental truck and saw people "strewn all over the road" where the incident occurred.
Toronto's transit agency said it has suspended service on the subway line running through the area.
The incident happened about 30 kilometres from downtown, where cabinet ministers from the G7 countries are gathering to discuss a range of international issues in the run-up to the G7 meeting near Quebec City in June.
There was no noticeable change in security around the Intercontinental Hotel where the ministers gathered.
More to come.