The cause of a substation fire that sparked massive delays at Heathrow Airport is unknown, according to an interim report.

An interim report finds power was restored to Heathrow seven hours before flights resumed.

Europe's biggest airport had "no choice but to close" for 16 hours, leading to the cancellation of more than 1,000 flights to ...

The cause of a substation fire that triggered a total shutdown of Heathrow airport in March remains unknown, an investigation ...

The National Energy System Operator (NESO) has released its interim findings into the North Hyde Substation fire that caused ...

A fire at a nearby electrical substation in March shut down operations at one of the world's major transport hubs.

The cause of an electricity substation fire which triggered the closure of Heathrow for almost a day in March still remains ...

An investigation into the power outage caused by a substation fire that shut down Heathrow Airport is due to publish its ...

An interim report into the power outage that shut Heathrow Airport will be published on Thursday. The airport was closed to ...

ScottishPower advances UK's clean energy with £1.35bn funding, enhancing grid capacity and enabling reliable renewable energy ...

The root cause of a fire which led to the shutdown of Heathrow Airport and affected hundreds of thousands of journeys ...

The cause of the fire at an electricity substation that forced Britain's Heathrow Airport to shut down for almost a day ...