Gwent Police says officers are concerned about the safety and wellbeing of missing 13-year-old Michael Driver because of his age.
He was last seen at his home in Rogiet, near Chepstow in Monmouthshire, on Saturday 12 October.
Anyone who has seen him or has any information about his whereabouts is urged to ring 101 or Crimestoppers on 0800 555 111.
More top news
But clear skies remain in the south and west
Joshua Davies says he was running away from a gang when he fell from the fifty-foot bridge.
First Minister's Questions: the new term begins