UPDATE: The closed lane has now reopened.
Traffic has been slowed on Hwy 401 with a lane closure following an accident near Trenton.
At close to 9 a.m. on the westbound lanes near the Glen Miller Road on-ramp, a tractor-trailer rear-ended a snowplow, sending the transport into the ditch.
First responders are on scene, and one of the lanes has been closed as they work to clear the wrecked vehicles.
Nobody in either vehicle was injured.
