Motorists are being urged to take care on the roads as snow begins to fall this morning.
North Wales Police said they had received a large number of reports of road traffic collisions (RTC) due to ice on the road.
Traffic Wales said the A55 had also been affected by the cold conditions.
Traffic Wales, in a post on Twitter, said: "Weather conditions are worsening in parts of the A55 and congestion is building up in parts.
"Drive with care and pay attention to the changing road and weather conditions."
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