THE A4244 near Brynrefail, Llanberis has been closed in both directions due to a collision. It is expcted to remain closed for some time.
North Wales Police have made an appeal for motorists to avoid the area.
A spokesman for North Wales Fire and Rescue service said: "Three people had to be cut out of two vehicles involved in a collision. Two appliances were called to the scene from Caernarfon. The people involved have been taken to hospital."
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