The boy was receiving medical treatment at a Michigan medical facility when the chamber exploded on Friday, the authorities said. His mother was also injured.

The family of Thomas Cooper, the 5-year-old boy killed in a hyperbaric chamber explosion at a Troy medical center​, is retaining a Southfield law firm.

A hyperbaric chamber exploded at the Oxford Center in Troy, Michigan, killing a 5-year-old boy being treated and injuring his mother. What to know about the equipment.