Heathrow Airport will be closed all day Friday after a fire at a nearby electrical substation that supplies it with power.
The fire is still burning, London Fire Brigade says, with no power at Terminal 2 and 4 as well as 5,000 homes nearby.
Counter-terrorism police are leading the investigation into the fire, but the Met Police says there’s currently no indication of foul play
Heathrow, Europe’s busiest airport, warns of days of disruption – more than 1,350 flights are thought to be affected today.
The implications will stretch far wider than Heathrow, and could impact flights much further afield.