****UPDATE: Delta has now tweeted that “@Delta ground stop has been lifted & limited departures resuming following power outage in ATL that impacted Delta computer systems”.

“@Delta customers headed to airports should expect delays/cancellations. Customer service agents doing everything they can to help.”****

A nationwide systems outage is causing disruption to Delta services, with all departing flights currently suspended.

The US carrier’s Twitter page has posted the following advice within the last hour:

“Due to a computer outage, flights awaiting departure are currently delayed. Flights enroute are operating normally.”

“Customers should check the status of their flight before heading to the airport while the issue is being addressed.”

The BBC has posted reports of passengers being stranded at San Francisco airport.

Business Traveller will update this article as it gets more information.