Ontario Provincial Police (OPP) say a truck fire closed lanes of the QEW in Burlington for hours on Thursday morning.
Commuters were impacted by a road closure after a load of batteries on a tractor-trailer caught fire.
Police say the incident was called in around 3:30 a.m. and led to the shutdown of the highway between North Shore Boulevard and the 403 for a cleanup and investigation.
No one was injured in the blaze.
OPP say the reopening time of the roadway is unknown and that travellers should expect “major delays” through the area.
In a Highway Safety Division Twitter post Sgt. Kerry Schmidt said crews have had difficulty clearing the scene due to the danger posed by the burned battery load.
“Obviously filled with corrosives and acids and whatever else is there to power these batteries,” Schmidt said.