RCMP issued the advisory just after 10:30 p.m. Monday.
Update: the highway is now open in both directions
Traffic on the Trans-Canada Highway is at a standstill this evening due to a jackknifed tractor trailer on Gallants Hill, located near Route 402 - Gallants Highway.
RCMP say traffic is blocked in both directions as crews work to clear the truck. Motorists should expect delays.
The advisory was issued just after 10:30 p.m. on Monday.