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Long delays after early morning M4 crash

National Highways said crews are clearing debris and diesel after the crash, with delays of more than 50 minutes and two lanes closed.

  • On Tuesday, a northbound stretch of the M3 near Winchester closed after an HGV struck the central reservation at 01:00 BST, rupturing its fuel tank and spilling approximately 300 litres of diesel across the carriageway.
  • National Highways reported the heavy goods vehicle struck the central reservation between Winnall Interchange and Popham Junction, rupturing the fuel tank. Emergency crews responded to manage the significant spillage across the road.
  • The road requires full resurfacing and is expected to remain closed through the morning rush period. National Highways established a diversion route via the A34 at Newbury to accommodate traffic flow.
  • One lane has reopened to traffic, though Lane One remains closed for debris clearance as crews continue working at the scene. Motorists are advised to allow extra time for their journeys.
  • The Hampshire and Isle of Wight Constabulary is monitoring the situation as congestion builds on the A34 near the crash site. Officials warn drivers to seek alternative routes or plan for significant travel delays.
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A lorry crashed into the central reservation between Junction 9, for the Winnall Interchange, and Junction 8, for the Popham Junction

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BBC News broke the news in London, United Kingdom on Tuesday, September 15, 2026.
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