Heathrow has come under lockdown again after police evacuated staff and passengers from Terminal Four this afternoon. The evacuation and subsequent lockdown was reportedly prompted by a fire alarm.
UPDATE: Heathrow Airport Terminal Four has reopened after fire alert.
Passengers were evacuated from Terminal Four following a fire alarm. Footage from the scene shows mass confusion as passengers attempted to leave the terminal but staff were unable to provide them with details or updates.
Airport staff are currently investigating “as a matter of urgency” as the alarm was set off shortly before 1:30 P.M. local time on Thursday.
Freelance journalist Harriet Constable described the scene as “chaos” in a number of Tweets.
Heathrow Airport is a major international airport in London, United Kingdom. Heathrow is the third busiest airport in the world by international passenger traffic in addition to being the busiest airport in Europe by passenger traffic and the sixth busiest airport in the world by total passenger traffic. In 2016, it served a record 75.7 million passengers, a 1.0% increase from 2015.