The Gas Safety body has been warning the public how to avoid the silent killer that is carbon monoxide poisoning.
Here are the six signs of poisoning from the dangerous gas:
- Loss of consciousness
More top news
Police from Durham Constabulary are concerned about a woman who has gone missing.
A man and woman who were found dead in a house in Sunderland have been named as Alan and Kay Martin.
A man has died after he was hit by a car which police had been pursuing.