The details: Police were called to the incident in the westbound carriageway at about 07:55 on Thursday.
A spokeswoman for Suffolk Police said officers are currently at the scene.
The lorry has suffered a tyre blowout and is awaiting recovery.
Live traffic reports show long delays in the area, affecting morning commuters.
Why it matters: It comes as the PM has agreed to ministerial talks about an Ipswich Northern Bypass following mounting pressure over the economic impact of Ipswich's road network.
The bottom line: Motorists should expect delays in the westbound carriageway near Seven Hills Interchange while recovery takes place.
PM agrees to ministerial talks on Ipswich's Northern Bypass
Prime Minister Sir Keir Starmer has promised to arrange a meeting about Ipswich's Northern Bypass, responding to mounting pressure over the town's traffic problems and a stark warning about the Orwell Bridge's future.
