One driver is facing charges following a multi-vehicle crash on Highway 401 in North York this morning.

The collision occurred in the eastbound express lanes of the highway near Leslie Street.

OPP Sgt. Kerry Schmidt said a transport truck slammed into three vehicles that had slowed down due to an earlier collision at Highway 404.

"The truck that (the driver) hit was loaded with some sort of carbon and that has spilled over the highway," Schmidt told CP24 on Monday morning.

Schmidt said one person has now been charged with careless driving.

No serious injuries were reported.

The highway was closed near Bayview Avenue but has since reopened.