There were slowdowns on Hwy 401 east near Trenton Wednesday morning.
Around 9:30 a.m., emergency crews were called near Wooler Road, also known as County Road 40.
The vehicle was originally travelling in the westbound lanes, however, it left the roadway, went through the grass and fencing and into the eastbound lanes.
One person was injured and extricated from the vehicle, and taken to Kingston General Hospital with unspecified injuries.
Traffic is moving normally.