A HEAD-on car crash has caused delays for drivers using the A3M.
A Honda Civic and a Toyota Corolla crashed head-on on the roundabout at Junction 3, which connects Hulbert Road to the motorway.
Police said one of the cars, being driven by an elderly motorist, travelled in the wrong direction on the roundabout.
Police, firefighters and paramedics were called out at about 12.55pm to the scene.
The northbound offslip from the A3(M) has been closed by police while emergency services are dealing with the incident.
There has also been queuing traffic along the northbound Hulbert Road from the direction of Leigh Park, as well as congestion along Hulbert Road to the junction with Frendstaple Road.
It is not thought either driver is seriously injured.
The Highways Agency said it was hoped that the road would be cleared before 4pm