Heathrow terminal evacuated

Heathrow's Terminal 4 has been evacuated, while firefighters respond to what they're calling 'a possible hazardous materials incident.'

They were called just after 5pm

A spokesperson for the 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 Terminal 4 has been evacuated as a precaution whilst firefighters respond.

"The brigade was first called about the incident at 1701, and crews from Feltham, Heathrow, Wembley and surrounding fire stations have been sent to the scene."

Heathrow Airport said the check-in area has been closed and advised passengers not to travel to Terminal 4.

According to the airport's website, flights from the affected terminal are still scheduled to depart on time, with only one delay to a Saudia airline flight to Jeddah in Saudi Arabia currently expected.

Footage posted on social media showed passengers with their luggage waiting outside the airport, with some wrapped in foil blankets.

Transport Secretary Heidi Alexander said she was monitoring updates from those at the scene and the airport.

All other terminals at the London airport are operating as normal.

London's Heathrow is the UK's busiest airport.

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