One lane is blocked on the M5 northbound between J20 B3133 (Clevedon) and J19 A369 (Portishead).
A single vehicle accident has blocked lane one (of four) approaching the split level section.
Avon and Somerset Police have denied that One Direction will be filming in Shepton Mallet tomorrow.
The boy band have been in Somerset recently - last week in Clevedon where they filmed part of their latest music video on the town's pier.
On Twitter the Avon and Somerset force said rumours that the music stars are planning to be in the region again are untrue.
Clevedon Pier is re-opening to the public after being closed for two days for pop stars One Direction.
Hundreds of fans descended on the town after hearing that Harry Styles and his pals were making a video on the landmark.
The pier's trustees said it was shut to the public due to an exceptional fundraising opportunity.
BREAKING: One Direction have finished filming at Clevedon Pier and have left the sea front after speaking with fans.
One Direction have been in Clevedon today filming their latest music video.
Rumours of the band's visit spread quickly on social media, and dozens of fans came down to the seafront to try and catch a glimpse of them on the Pier.
They're best known for hits like 'What makes you beautiful' and 'best song ever'. They came to fame on ITV's X Factor
Fans have been lining Clevedon sea front to try and catch a glimpse of One Direction.
The band are taking part in some filming on the town's famous pier.
Dog owners in North Somerset have got their pooches to sign a petition against plans to keep them on a lead.
Dogs can currently run free at Herbert Gardens in Clevedon, but the town council says people have been knocked over, and there are plenty of other places where they can be exercised without leads.