Police have closed both carriageways of the A66 close to Middlesbrough's Riverside Stadium after a two huge steel pipes fell off an HGV into the path of a second lorry.
It's thought the second HGV collided into the pipes which are 40 foot long and 4 foot in diameter. Nobody was hurt in the accident.
The second lorry was carrying a liquid but there has been no spillage. Officers were called just before 11.30. Cleveland Fire Brigade is at the scene.
Drivers have been warned the road will remain closed in both directions for at least four hours.
More top news
Northumberland has won Silver in the Best UK Holiday Destination/County in the prestigious 2015 British Travel awards last night.
Police from five forces have carried out raids today aimed at stopping an escalating feud in the travelling community.
Newcastle United supporters have the highest number of active banning orders in the Premier League.