The entire fire safety regulatory system came under intense scrutiny following the Grenfell Tower fire of 14 June 2017, the deadliest residential fire since the blitz. It was sparked in the early hours by a simple fault on a fridge freezer in a fourth-floor flat. The fire rapidly spread throughout the 24-storey residential block, killing 72 people. The public inquiry published its final report in September 2024 and made recommendations for further measures to be introduced., and the Metropolitan Police is leading a criminal investigation into the fire. Following the fire: