Two men have been taken to hospital following a crash on the A5 in Gwynedd.
The collision involved two vehicles by Llyn Ogwen, near Bethesda, at about 09:45 GMT on Saturday morning.
North Wales Police said one man has been taken to Stoke Mandeville Hospital with potentially life-changing injuries.
Another man has been taken to Ysbyty Gwynedd in Bangor but his condition is not thought to be life-threatening.
The road was closed for about six hours but was reopened just before 15:00.