NORTH-EAST sun-seekers are being urged to ensure their holiday does not end in a poison gas tragedy.

The deaths of two couples abroad in the past 18 months have shown that travellers can be at risk of carbon monoxide (CO) poisoning in all sorts of accommodation.

Now experts from British Gas are warning all holiday-makers to be on their guard.

Every year, CO poisoning results in deaths and injuries, most caused by faulty gas appliances.

But tourists are also being warned to look out for more unusual CO dangers on boating holidays and camping breaks.

The Northern Echo's Silent Killer campaign aims to raise awareness of the dangers of breathing poisonous fumes from badly-maintained or faulty gas heaters or boilers.

Chris Bielby, head of quality and standards for British Gas, said: "Although it is rare, CO poisoning can strike when any fuel-burning appliance is used in a confined space.

"People should avoid using equipment such as camping heaters, gas lamps and charcoal grills in places like tents, camper vans and boat cabins.

"Our advice is to know the signs and symptoms, and be aware of ways to keep your family safe whether holidaying at home or abroad this summer. "

British Gas experts said most CO incidents at this time of year were due to lack of servicing, inadequate ventilation or poor installation of water heaters and cookers in holiday properties.

Danger signs include spillage stains, soot and discolouring around water heaters and cookers, and flames that burn yellow or orange, rather than blue.

Holidaymakers should also check for unusual smells, which are obvious signs that appliances may have been neglected or have not been checked properly.

For more information on carbon monoxide, visit the website, www.house.co.uk/safety

Read more about the Silent Killer campaign here.