Pedestrian Dead After Being Struck by Multiple Vehicles in Columbus.

Two separate multi-vehicle crashes on Saturday left eight people hospitalized across two cities. One collision was in Scarborough, Ontario; the other shut down a Pittsburgh highway overnight.

• 1 driver taken to hospital with life-threatening injuries in Scarborough.
• 2 children were among 5 hospitalized in the Scarborough crash.
• 3 drivers taken to hospital with minor injuries after the Pittsburgh crash.
• Pittsburgh's Parkway East reopened by 3:30 a.m. after a roughly 90-minute closure.

Why it matters: The Scarborough crash involved a Toyota BZ4X striking a Dodge Caravan making a left turn from a parking lot. The Pittsburgh crash involved four vehicles in a chain-reaction sequence that Pennsylvania State Police believe was triggered by an impaired driver.

• A suspected impaired driver in Pittsburgh is expected to face charges pending medical records.

How 11 sources split on this story

What’s next: Toronto police continue investigating the cause of the Scarborough collision.

• Pennsylvania State Police expect to file charges against the Pittsburgh driver pending medical records.
• What caused the Scarborough crash, and will charges follow?
• Will the Pittsburgh driver's medical records support an impaired-driving charge?