Heathrow will be closed all day following an electrical substation fire
A fire at a London electricity substation caused significant flight delays and cancellations at Heathrow Airport, affecting around 200,000 passengers. British Airways cancelled almost 80 flights on Saturday, adding to the 1,300 grounded on Friday. Disruption is expected for several days. The fire is not being treated as suspicious. Airlines are working to reposition aircraft and crew, with some flights diverted to airports across Europe.
