A 14-year-old pedestrian has been seriously injured in a road incident near the Powys-Gwynedd border.
The main A489 road was closed after the incident involving a vehicle between Cemmaes Road and Machynlleth at 1545 BST on Monday.
The teenage girl was flown to hospital after the incident involving a 4x4 vehicle.
Dyfed-Powys Police have appealed for witnesses. Traffic was affected between Mallwyd and Machynlleth.
Anyone with information is asked to contact Pc 972 Cook at the mid Wales roads policing unit at Newtown on 101 (in Wales) or 01267 222020 (outside Wales).