A serious collision on the M23 has forced the northbound carriageway to close this morning, causing long tailbacks near Gatwick Airport.
The crash occurred shortly after 5.30am on Thursday, April 2, between junction 10 for Crawley and junction 9 for Gatwick.
Multiple vehicles are believed to be involved.
Emergency crews are at the scene working to make the area safe, while traffic officers and recovery teams prepare to clear the wreckage.
National Highways has warned drivers that the closure could remain in place for several hours, and significant delays are building on the approaches.
Motorists are advised to avoid the stretch if possible and to allow extra travel time if they must travel toward Gatwick.
For the latest developments and travel updates, follow live reports as the situation evolves.