According to multiple sources, including The Sun, ITV News Anglia, and The Telegraph, the fire at Luton Airport car park was started by a diesel car on the third floor of Terminal Car Park 2. The fire quickly spread and caused significant damage to the car park, with hundreds of cars damaged and the structure partially collapsed. While there were no reports of any fatalities, five people, including four firefighters, were admitted to hospitals in Luton and Dunstable for smoke inhalation.