M4: Newport section shut after death crash at Brynglas tunnel
There are five mile (8km) queues of traffic as a section of the M4 eastbound at Newport has been closed following an accident in which one person died.
The closure affects J28 (Tredegar Park) and J25A A4042 / B4596 (Grove Park Roundabout) following the crash in the Brynglas tunnels.
A diversion is in place via J28 on to the A48 over the bridge in Newport to rejoin the M4 at J24.
The road is expected to re-open later.
Gwent Police say they are dealing with a one vehicle accident. The victim's next of kin has yet to be informed.
Recovery work is currently under way and police hope to reopen the carriageway later on Friday morning following the incident at 03:00 GMT.
Traffic Wales says there is a five-mile queue of traffic waiting to leave the M4 to use the diversions with vehicles backing up to Cardiff Gate, J30.
Traffic cameras show the tailback between junctions 28 and 29.
Traffic is said to be heavier than usual on A48 Southern Distributor Road Eastbound between M4 J28 / A4072 (Tredegar Park) and M4 J24 / A449 (Coldra) due to the diversion.