Update: The M5 between Burnham and Bridgwater is now open after resurfacing works, National Highways said.

THE M5 has been partially re-opened after a fire to an LGV carrying milk powder and diesel.

National Highways said the northbound lane is now open.

The southbound and northbound carriageways were closed between junctions 22 (Burnham-on-Sea) and 23 (Bridgwater) to allow police and the fire service to deal with the lorry fire.

National Highways is advising drivers intending to use the M5 to plan ahead and allow extra time for their journeys following an earlier serious incident in North Somerset.

A spokesperson for the Devon and Somerset Fire Rescue Service said: "We are currently on-site at a lorry fire on the M5 motorway’s hard shoulder, between Junctions 22 (Edithmead) and 23 (Dunball).

"The lorry was transporting milk powder and diesel, and we are using a telehandler to safely offload these materials. The driver is unharmed.

"The southbound carriageway remains closed as our teams work to fully extinguish the fire; however, the northbound carriageway has now been reopened, with a reduced speed limit in place.

"We are collaborating closely with partner agencies, including the police and the Environment Agency."

The incident occurred on the southbound carriageway at 9.21am and with the LGV carrying potentially hazardous chemicals, National Highways is advising drivers in trapped traffic to stay in their vehicles while the fire service work to extinguish the fire.

Northbound traffic is currently being diverted from junction 23 via the A38 and A39 to rejoin the M5 at junction 22, with the southbound diversion in reverse, and with congestion in both directions, drivers planning to use the M5 are advised to avoid the area and consider alternate routes.

National Highways is working with the emergency services, and with trapped traffic being released before the carriageways can be opened, residual delays will remain for some time.

In a further update, National Highways said:  "All routes are extremely busy. Lanes 1 and 2 will remain closed throughout the rest of today (October 25) and overnight for resurfacing following the fire damage."

Up-to-date travel information is available from National Highways by visiting www.trafficengland.com and Twitter updates are also available at @HighwaysSWEST.

For urgent real-time assistance, the company’s 24/7 contact centre team is able to provide up-to-the minute information on 0300 123 5000.