Police are urging motorists to beware of severe conditions when driving this morning.
A spokesman for Cleveland Police said: "Roads remain icy or slushy in places, allow extra time for your journey and drive according to the road conditions."
Northumbria Police say they have already dealt with a number of incidents in the A19 area.
A spokesman said: "Take care if driving on the A19 around Sunderland this morning - road conditions are very poor, and our officers are already dealing with a number of accidents in the local area.
"Reduce your speed and keep a safe distance from the car in front of you."
And, Durham Police have also issued a warning to motorists about weather conditions in the force area.
A spokesman, said: "Snow and ice are affecting County Durham and Darlington this morning making driving hazardous, de-ice those windscreens, allow extra time for your journey, drive carefully everyone."