The death of a man whose body was found on Saturday morning in Undy, Usk is being treated as "unexplained" by police.
Gwent Police were called shortly after 10am , after the man - whose identity has not yet released - was discovered in a reen of water opposite Undy Police Station.
A police spokesperson said the death is not being treated as suspicious.
All lanes are open and traffic's returned to normal after the accident on the A449 Southbound between the A472 (Usk Interchange, Usk) and the M4 J24 / A48 (Coldra, Newport).
William Philip Goldie was serving a sentence over drugs offences Credit: Gwent Police
Police are searching for a 22 year-old man who has fled Prescoed Prison, near Usk.
William Philip Goldie is described as being 6ft tall and of slight build. He has short brown hair and blue eyes.
In 2009, Goldie was convicted of possession of controlled drugs with intent to supply and sentenced to 30 months in prison.
Police say he has links to the Gloucester area, and have asked anyone with information to contact them on 01633838111, or Crimestoppers on 0800 5551111.