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
Police officers should not physically restrain people with known or suspected mental health problems, the official watchdog has said.
A blustery start to the day will be followed by rain as the morning progresses.
A wet and windy start for many areas, with some heavy rain at times.