The eastbound 401 was closed for a number of hours this morning following a collision.
Lennox and Addington OPP responded around 12:50 a.m. to the major highway east of Palace Road.
According to officers, a pickup truck was travelling west in the eastbound lanes and collided with a transport truck.
Police arrested a 38-year-old Kingston area man who suffered non-life threatening injuries. He was transported to hospital.
The driver of the transport truck was not injured.
Police are continuing to investigate the collision.