The A1(M) is closed in both directions at Dishforth in North Yorkshire because of a lorry fire.
Police say the incident, which was reported at 4:02pm, involves a lorry parked on the hard shoulder of the southbound carriageway, just past junction 49. The fire occurred in the trailer of the lorry which is causing smoke to blow over both carriageways.
Motorists are being advised to avoid the area while emergency services deal with the incident. Diversions are in place.
Police are appealing for information after a spate of incidents involving young people throwing objects onto the A1M from a motorway bridge.
CCTV captured two men stood on the bridge at Coxhoe over the motorway throwing various items over the bridge onto passing cars. Objects included a bag of cement and stones. This particular CCTV footage was from November 13th.
Since September of this year there have been a number of similar incidents - one of which resulted in the driver of an HGV being taken to hospital with glass in his eyes.
Police believe that it is only a matter of time before someone is seriously injured if those responsible are not caught.
The first man that the police are looking for are is 5 foot 10, of skinny build, around 16 years of age and wearing a grey hoody top and jeans.
The second man that the police are trying to track down is 5 foot 2, also of slim build and younger than the other male. He was also wearing a hoody top and jeans. The second male has a small whippet type dog on a lead.
Police believe that these two people may be responsible for other incidents that have happened in the area.
If anyone with any information could please contact DC 157 Steve Gothard at Durham City CID on 101, or Crimestoppers on 0800 555111.