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.

A suspected carbon monoxide leak at a Kittery, Maine day care led to the hospitalisation of 11 people, including children.

Carbon monoxide is a colorless, odorless, tasteless gas that can accumulate in homes and kill without warning.

Carbon monoxide (CO) is an odorless, colorless gas that can cause sudden illness or death. Symptoms, often mistaken for the flu, include headache, nausea, dizziness, drowsiness, vomiting, and shortness of breath. Emergency care is critical if exposure is suspected.

Investigators say they have determined the source of the carbon monoxide leak at a Kittery day care center that resulted in multiple children and adults being rushed to the hospital. The Maine Fire Marshal's Office is investigating a carbon monoxide incident that happened at Building Blocks Learning Center off Route 236 in Kittery on Wednesday.