A team of specialist crews have reached Heathrow airport which is currently dealing with a “possible hazardous materials incident”
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.”