Driver Plows Van Into Toronto Pedestrians, Kills 10

Police say they arrested Alek Minassian of Toronto after a brief standoff

At least 10 people have been killed and many more injured after a van struck pedestrians on the sidewalk of one of Toronto's busiest streets. Eyewitnesses describe how the incident unfolded. Photo: Warren Toda/EPA/Shutterstock

Vipal Monga and

Jacquie McNish

Updated April 24, 2018 12:01 a.m. ET

TORONTO—A man in his mid-20s plowed a rented van into people walking along a busy Toronto thoroughfare on Monday, killing at least 10 and injuring 15, and rattled one of North America’s safest major cities.

Police said they arrested the driver, Alek Minassian, 25 years old, of Ontario. Authorities said Monday evening that they were still trying to determine his motive.

“We...