Heathrow Airport evacuation LIVE as 'hazardous materials' investigated

Heathrow Airport Terminal 4 has closed and passengers have been urged not to travel there as emergency services arrive in response to a "possible hazardous materials incident"

Firefighters have arrived at Heathrow Airpor following reports of a "possible hazardous materials incident."

Passengers were seen waiting outside Terminal 4 as firefighters entered the airport.

18:57Anders Anglesey

Specialist team on site

A specialist team is on site at Heathrow Airport Terminal 4.

An airport employee told passengers outside that a specialist team was on site.

He said there was "an ongoing incident in Terminal 4."

18:54Anders Anglesey

All other terminals 'operating as normal'

A Heathrow Airport spokesperson said in a tweet shared to X/Twitter: "Terminal 4 check-in has been closed and evacuated while emergency services respond to an incident.

"Please do not travel to Terminal 4, colleagues are supporting passengers on site.

"We will provide further information as soon as we can, all other terminals are operating as normal."

18:51Anders Anglesey

Trains not able to stop at Terminal 4

Trains are not able to stop at Terminal 4.

National Rail said in a post shared to X/Twitter: "Trains are unable to call at Heathrow Terminal 4 due to the emergency services dealing with an incident."

18:47KEY EVENT

'Do not travel to Terminal 4,' says spokesperson

A spokesperson for the airport said in a statement: "Terminal 4 check in has been closed and evacuated while emergency services respond to an incident.

"We are asking passengers not to travel to Terminal 4 and supporting those on site."

18:45Anders Anglesey

Terminal 4 closed

Terminal 4 has closed at Heathrow Airport.

Emergency services have arrived at the airport following a reported incident.