Cause of Heathrow shutdown fire remains unknown
Suspicious activity ruled out after investigation into blaze that left London hub and homes without powerBusiness live – latest updatesInvestigators have so far failed to find the root cause of a large fire at a substation six weeks after it left almost 70,000 homes without power and shut Heathrow airport.After an urgent investigation ordered by the government, the National Energy System Operator (Neso) said it had ruled out any suspicious activity. Continue reading...

Suspicious activity ruled out after investigation into blaze that left London hub and homes without power
Investigators have so far failed to find the root cause of a large fire at a substation six weeks after it left almost 70,000 homes without power and shut Heathrow airport.
After an urgent investigation ordered by the government, the National Energy System Operator (Neso) said it had ruled out any suspicious activity. Continue reading...