Update 6.56pm:

Travel time is now ten minutes.

Update 6.01pm:

Stagecoach warns of disruptions to services because of the broken down lorry. The X3 service is running approximately 30 minutes late.

Update 6pm:

The map shows areas areas of congestion in Newport.

South Wales Argus:

Update 5.55pm:

Delays have decreased to roughly 56 minutes. But average speed remains at 10 mph.

Update 5.51pm:

Here is the latest picture

South Wales Argus:

Update 5.50pm:

All lanes have now re-opened.

Update 5.23pm:

Delays have increased to one hour 30 minutes.

Update 5.06pm: 

Traffic is now coming to a halt to view the broken down vehicle, reports claim.

South Wales Argus:

Picture shows the congestion.

Update 4.55pm:

The travel time has increased again to one hour 10 minutes. The one lane remains blocked.

Update 4.30pm:

Delays have now increased to one hour and there is an average speed of 10 mph.

Update 4.09pm:

Delays have now increased to 38 minutes.

Update 4.02pm: 

Gwent Police tweeted: "We have received a report of an abnormal load that has broken down on the M4 Eastbound J26, one lane is closed at his time, please be advised that delays may be possible."

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SEVERE delays are being reported on the M4 motorway.

Lane one is blocked after a vehicle broke down on the M4 between J27 B4591 Glasllwch Crescent (Highcross) and J26 A4051 Malpas Road (Malpas Road).

Travel time is currently 25 minutes.