Emergency services rushed to Heathrow Airport on Sunday morning, 7 December 2025, after a significant incident was declared at the airport's Terminal 3 multi-storey car park.
Emergency Response and Injuries
The London Ambulance Service confirmed it was called to the scene just before 8.40am, declaring a "significant incident" and initiating a full deployment of resources. Crews treated a number of people at the scene, though their injuries are not believed to be serious. The incident was treated as ongoing by the ambulance service for a period on Sunday morning.
Major Travel Disruption
The emergency response caused considerable disruption to key transport links serving the UK's busiest airport. Both the Elizabeth Line and the Piccadilly Line experienced delays. National Rail confirmed that lines serving Heathrow were temporarily closed while emergency services dealt with the incident.
Although lines were reopened, disruption continued with delays of up to 10 minutes and some cancellations expected until at least 11.45am. Road access was also severely impacted.
National Highways East announced the closure of the M4 spur road southbound between the M4 and junction 4A due to a "serious incident" within the Heathrow Tunnel. The Metropolitan Police were in attendance. The closure was later lifted after the incident was resolved.
Eyewitness Accounts and Police Presence
Social media posts from the scene described a major backlog of vehicles unable to enter or leave the Terminal 3 drop-off zone. One witness reported that "several" people had been apprehended, while others noted that vehicles were being searched.
Footage shared online showed a visible presence of armed police officers within the multi-storey car park structure at Terminal 3. The exact nature of the incident that prompted such a large-scale emergency response has not been officially detailed by authorities at this time.
