A picture showing a large plume of smoke with traffic building up on the M25The M25 has now reopened after being closed in both directions after a commercial fireHuge fire on M25 causes severe delays over risk of 'explosions' - recapThe M25 has reopened after being closed in both directions due to a nearby fire that could pose a risk to motorists from "secondary explosions". The closure is in both directions between J22 (St Albans) and J21A due to a nearby fire at a commercial premises. The closure has caused significant congestion on the M25 and nearby roads, including the A405 North Orbital Road and the M1 Southbound. National Highways has advised motorists to "allow extra time for their journeys and consider alternative routes". The incident is currently being attended by Hertfordshire Fire and Rescue Service, who have closed the busy motorway as a precaution due to the risk of "secondary explosions, smoke and debris affecting the carriageway."