A48 in both directions is partially blocked due to an oil spillage and accident between Highfield Road (Lydney) and Lensbrook (Blakeney).
Police are directing traffic.
More top news
Avon and Somerset Police are beginning a campaign to stop drink and drug driving over Christmas by publicly naming offenders.
The Staying Well Service is being launched by South West Ambulance Service to help its employees deal with traumatic and dangerous events.
It's a pretty rather start to the final month of 2015.