A fire that broke out in a nursing home in northeastern Bosnia-Herzegovina killed 10 people and injured 20, local police said. The blaze started on Tuesday night at the retirement facility in the town of Tuzla, breaking out on the seventh floor shortly after 20:45 local time (19:45 GMT). Around 20 people were sent to a medical centre for treatment, including firefighters, police officers, medical workers, employees, and residents of the home, a police spokesperson said. While the cause of the fire was not immediately clear, Prime Minister Nermin Nikšić called it 'a disaster of enormous proportions'. According to preliminary information, 10 residents of the Tuzla retirement home lost their lives in the fire, and a full investigation will be conducted as soon as conditions are safe. Chairman of Bosnia-Herzegovina's tripartite presidency, Željko Komšić, also offered condolences to the victims' families and the injured. A resident of the nursing home, Ruza Kajic, described waking up after hearing a 'cracking sound' and witnessing flames and burning material falling from above. Media footage showed flames bursting from the windows of the upper floors of the nursing home. Additionally, several patients are being treated for carbon monoxide poisoning, with three in intensive care.