The gas fitter at the centre of an investigation into the fatal poisoning of two teenage friends in a holiday apartment today pledged to co-operate with the authorities.

Health and safety experts in the North tonight issued a major alert after confirming that a defective appliance had been found at a seaside apartment where two teenage boys were killed by leaking gas fumes.

The second funeral is being held this morning following last week's gas poisoning double tragedy in Co Derry.

Health and safety officials in the North investigating how two young men died in Derry have identified a gas applicance that may have caused their deaths.

LEAKING gas fumes poisoned two school friends in a seaside apartment as they enjoyed a holiday ahead of exam results.

Two teenage boys have died in the North following a suspected carbon monoxide leak in Co Derry.