Heathrow Airport said it is "open and fully operational" on Saturday after the airport was shut over a loss of power caused by a substation fire.Flights resumed at the west London airport on Friday evening and restrictions on overnight flights were temporarily lifted following hours of closure, after a blaze knocked out an electricity substation in Hayes late on Thursday evening.The Metropolitan Police are not treating the incident as suspicious and the London Fire Brigade's investigation is foc

Heathrow Airport said it is "open and fully operational" on Saturday after the airport was shut over a loss of power caused by a substation fire.Flights resumed at the west London airport on Friday evening and restrictions on overnight flights were temporarily lifted following hours of closure, after a blaze knocked out an electricity substation in Hayes late on Thursday evening.The Metropolitan Police are not treating the incident as suspicious and the London Fire Brigade's investigation is focusing on the electrical distribution equipment.