TWO lanes of the M4 are blocked in Newport after an accident.

Lanes one and two of the westbound carriageway are blocked between junction 29 at Tredegar Park and junction 29 at the A48(M) following a single vehicle collision.

According to Traffic Wales queues lead back to junction 27 at High Cross, as only one lane remains open passing the accident. It is not yet known how serious the incident is.

Emergency services are en-route.