Firefighters are on side at London Heathrow where teams are responding to a “possible hazardous materials incident.”

In a statement, London Fire Brigade said: “Firefighters are responding to a possible hazardous materials incident at Heathrow Airport.

“Specialist crews have been deployed to carry out an assessment of the scene, and part of the airport has been evacuated as a precaution whilst firefighters respond.

“The brigade was first called about the incident at 17:01, and crews from Feltham, Heathrow, Wembley and surrounding fire stations have been sent to the scene.”

A spokesperson from Heathrow Airport told the BBC: “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 support

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