There are delays on the A14 eastbound on the outskirts of Ipswich after a lane was closed as police stopped a vehicle.
Motorists will find congestion on the A14 from the Whitehouse junction (j53) towards Claydon as a result of the incident, which happened at around 5.30pm.
A police spokeswoman said two people had been arrested at the scene.
“A vehicle was stopped and two occupants detained,” she said. The lane has since reopened.
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