London's Luton Airport suspended all flights until Wednesday afternoon and asked passengers not to travel there after a "significant fire" caused the partial collapse of a parking structure.
Visuals from the spot showed huge flames leaping out of the third floor of a car park at Terminal 2 of the airport, as firefighters battled to bring the blaze under control.
"Our priority remains supporting the emergency services and the safety of our passengers and staff. Therefore, we have taken the decision to suspend all flights until 3 pm (1400 GMT) on Wednesday 11th October," the airport said in a statement issued early Wednesday morning.
"Passengers are advised not to travel to the airport at this time, as access remains severely restricted," it added.
Five people, including four firefighters and an airport employee, were admitted to hospital, according to the local ambulance service.
Another person was treated on-site.
The fire broke out at 8:47 pm (1947 GMT) in the airport's newly built car park.