Commuters in Somerset faced delays of several hours today after the M5 was closed in both directions near Bridgwater.
It was after the top of a tanker split and kerosene spilt onto the carriageway.
Police working to clear the area now say the stretch of road between J23 and J24 is likely to remain closed for at least the rest of the day.
The closure puts a great deal of pressure on A roads and other surrounding routes.
Commuters stuck in the backlog have been sharing their experiences:
One woman's son was right behind where the above photo was taken:
Dave Porter a 36 year old accountant took this photo from his car while stuck on the M5 for 5 hours.
The M5 is closed in both directions near Bridgwater after a tanker carrying kerosene overturned just before the slip-road at junction 23 northbound.
It's between J23 A39 (Bridgwater North) and J24 A38 (Bridgwater South), and is causing traffic problems all the way up to Burnham-on-Sea.
Two lanes are closed on the M5 Northbound between J20 (Clevedon) and J19 (Portishead).
It's after an accident this morning which has closed lanes two and three. Approach with care.
Work is due to take place today to repair one of Somerset's most popular landmarks.
The 40-foot high Willow Man went up beside the M5 in 2000, though it had to be rebuilt after a fire the following year.
The artist, Serena de la Hey, will begin mending the statue's leg this morning and will inspect the structure with a view to further repairs next year.
Putting the 'moo' in commuting? The M5 was blocked in both directions in Gloucestershire last night - because a wandering cow had brought it to a standstill.
As baffled commuters waited in their cars (no doubt beeping their horns), Gloucestershire Road Police rushed out to save the day before the troublesome rambler could milk the situation any longer.
Finally, they tweeted the happy news that the cow had been reunited with its farmer - and the road could get moo-ving once more.
The M5 is blocked in both directions between J13 (Stroud) and J14 (Thornbury) after reports of an accident and animals on the road.
Highways England say a cow was on the carriageway, police are on the scene.
Two cars have been involved in an accident which has partially blocked the M5 northbound slip road to the A40 Golden Valley bypass
M5 Northbound entry slip road partially blocked due to accident, two cars involved at J11 A40 Golden Valley Bypass near Gloucester.
Emergency services are dealing with a serious collision on the M5 in Gloucestershire.
The motorway is currently closed between J11a-12. Police are allowing trapped traffic to pass. There will be a diversion put in place.
A mother onboard the coach which overturned on the M5 motorway has described how she prayed "please don't let me die".
Sharlodane Beckles from West Bromwich has been left with a broken neck and an horrific head wound which needed 21 stitches.
She was travelling with her toddler and said all she could think was she didn't want to leave him.