A woman who nearly died from carbon monoxide poisoning has encouraged others to install alarms after she felt "lucky" to have survived. Henrietta Harrison, 53, originally from Welford, Northamptonshire,

The concrete saw was being used in a nearby suite that was under construction without a state building permit, and smoke detectors near the saw were covered up, authorities said.

While a cause has been determined behind what caused a carbon monoxide leak at a New England day care on Wednesday, it continues to be under investigation.

Exposure to carbon monoxide gas can starve the body of oxygen causing headaches, dizziness and confusion among other symptoms. In the UK , around 30 people die from carbon monoxide poisoning each year, and about 4,000 people are treated in A&E departments.

State inspection records reveal new details about the York County childcare facility at the center of a suspected carbon monoxide leak Wednesday night.

The fire marshal’s office said it operated the building’s heating system in coordination with Maine Fuel Board inspectors and found no concerns related to the emission of carbon monoxide.

A propane-powered saw, used without a permit, is identified as carbon monoxide source in Kittery daycare incident. Eleven were sent to hospital.