5-yr-old killed in hyperbaric chamber blast in US; 4 face charges

Four people have been charged in the death of five-year-old Thomas Cooper, who was "incinerated" in a hyperbaric chamber explosion at a Michigan medical facility, officials said on Tuesday. The centre's founder, two managers, and the chamber operator face charges, including second-degree murder. Authorities say the facility risked lives for profit through unaccredited treatments.