Gwent Police are on the scene (Image: Newsquest)
A busy stretch of the A465 in Monmouthshire is closed, due to a crash.
The incident is believed to have happened early this afternoon.
Emergency services, including Gwent Police, are on the scene.
This is a breaking news story, check back for updates shortly.
For up-to-the-minute, live updates, check out our live blog right here.
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