Traffic on the M4 is currently at a standstill following a collision.
One vehicle has overturned and blocked two lanes near to junction 16 of the M4, causing major delays; traffic is built up to junction 17 at Chippenham.
Traffic on the M4 is currently at a standstill following a collision.
One vehicle has overturned and blocked two lanes near to junction 16 of the M4, causing major delays; traffic is built up to junction 17 at Chippenham.
