OPP is investigating a collision on Highway 10 in Caledon, Ont., on Friday, Sept. 4, 2020. (Supplied)

One person is in the hospital with critical injuries after a collision on Highway 10 in Caledon Friday morning.

Police say a southbound car and northbound gravel tractor-trailer collided as the truck turned left to enter a private driveway south of Charleston Side Road.

The gravel truck driver, a 60-year-old Brampton man, was arrested and charged with impaired driving, among other offences.

Police are asking for any witnesses to come forward.

#CaledonOPP is investigating a serious collision on #Hwy10 south of Charleston Side Rd. Road closures in effect, follow @OPP_COMM_CR for traffic updates, and please avoid the area. ^in pic.twitter.com/Wk3Ixic26O

— OPP Central Region (@OPP_CR) September 4, 2020