M25 closed in both directions after major fire sparks risk of secondary explosion

Noora Mykkanen | Senior Live News reporter Published August 11, 2026 11:07am Updated August 11, 2026 11:07am To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video A large fire is ripping through an industrial estate in north London next to the M25, causing a risk of explosion on the motorway. The blaze struck along the M25 this morning in the industrial park, which is home to several businesses ranging from film studios to a DPD depot. It has forced the UK’s busiest motorway to close in both directions after the ‘significant’ fire. National Highways warned it could cause a risk of ‘secondary explosion’ on the M25, with a stretch of the road shut between junctions J22 and J21a. Huge plumes of black smoke were seen billowing into the a