Heathrow: We can resume some flights later today

"Our teams have worked tirelessly since the incident to ensure a speedy recovery," it says.

"We're now safely able to restart flights, prioritising repatriation and relocation of aircraft."

Heathrow advises that passengers not travel to the airport unless the airline has told them to do so. 

"We hope to run a full operation tomorrow and will provide further information shortly," the statement continues. 

"Our priority remains the safety of our passengers and those working at the airport. We apologise for the inconvenience caused by this incident."

Heathrow Airport has been closed all day after a fire engulfed a nearby electricity substation;

The airport says it expects to restart some flights later today, and to run a full service tomorrow;

More than 1,350 flights have been disrupted, with Sky News told this could correspond to as many as 290,000 passengers;

Counter-terrorism police are leading the investigation into the blaze, with the cause unknown;

That fire is now under control;

In the past hour and a half, power appears to have been restored to Heathrow's Terminal 4;

But it's not clear when the airport will reopen;

British Airways' chief executive has warned there will be an impact for many days to come;

Ryanair - initially hailed for announcing "rescue flights! - has been accused of "profiteering from other people's misfortune" due to their prices;

European airline stocks have fallen and the cost to the industry is estimated at £20-£30m for airlines and the airport.