Emergency services swarmed the Gloucestershire town of Stroud on Boxing day after a fire erupted at a property. Police officers, paramedics and firefighters headed to Brimscombe Hill following report of a blaze.
One person, who was able to get out of the property, was taken to Gloucestershire Royal Hospital to be treated, Glouchestershire Police said. The force added: "Three other people, who were believed to have been inside the property, have not yet been accounted for and efforts to locate them are ongoing."