A man is seriously ill in hospital after a two-vehicle crash on the Felinheli Bypass.
A scooter was travelling towards Caernarfon from the Vaynol roundabout when it hit a black Hyundai car on the two lane section at just before 8.30pm on Tuesday night (17th September).
The scooter rider was taken by ambulance to Ysbyty Gwynedd in Bangor with serious injuries.
Police are appealing for witnesses or anyone with dashcam footage showing the scooter heading towards the bypass from the direction of Bangor.
Anyone with information should contact Sergeant Raymond Williams at the Western Roads Policing Unit in Llandygai on 101, quoting reference no. 20000699954, or the live web chat on the North Wales Police website.