Thousands of passengers have had their travel plans thrown into disarray after Heathrow Airport shut on Friday.
Homes near the airport were evacuated and some schools shut after a fire at an electrical substation in Hayes, west London, caused a power outage.
The disruption could go on for days, Heathrow said, as it warned passengers not to travel to the airport “under any circumstances” until it reopens.
Passengers who were on flights already in the air have told the BBC of the disruption that ensued after they were diverted to other airports, or turned back to where they had departed from.
