A person is in life-threatening condition after a three-vehicle crash on Highway 401 in Whitby Saturday morning.
According to an update posted on the OPP Greater Toronto Area X account at around 7:40 a.m., officers said there was a full closure of the eastbound lanes between Thickson and Stevenson roads after a pick-up truck and two other vehicles collided.
The closure lasted until mid-Saturday afternoon. Investigators said in an update that the collision scene was cleared just before 3 p.m. and all lanes were reopened.
Traffic backups to Brock Street South were reported throughout the day. Officers encouraged people to use nearby alternate routes, such as Victoria Street East, Consumers Drive or Dundas Street East.
The circumstances surrounding the collision weren’t immediately clear.
UPDATE (9:40 a.m.): #Hwy401 EB remains closed from Thickson Rd to Stevenson Rd in #Whitby following a three-vehicle collision. One person has been taken to hospital with life-threatening injuries. Investigation is ongoing, please continue to use alternate routes. ^pia
— OPP GTA Traffic (@OPP_GTATraffic) December 27, 2025
CLEARED (2:53 p.m.): #Hwy401 EB has fully reopened between Thickson Rd and Stevenson Rd in #Whitby following a collision involving a pick-up truck and two passenger vehicles. One person remains in hospital with life-threatening injuries. Thank you for your patience. ^pia
— OPP GTA Traffic (@OPP_GTATraffic) December 27, 2025
