TRAFFIC is at a standstill on the A1(M) following a four car pile-up this morning (Thursday). The northbound carriageway is experiencing heavy congestion following the accident near

TRAFFIC is at a standstill on the A1(M) following a four car pile-up this morning (Thursday).

The northbound carriageway is experiencing heavy congestion following the accident, which took place at 8.05 am near J6 for Welwyn.

A police spokeswoman said four cars, namely a white Citroen, a white Ford Transit van, a silver BMW and a black Nissan Navara, were involved in the collision.

One lane has now been re-opened and an ambulance is on the scene.

More to follow.