U.K. to probe Heathrow shutdown, airlines warn disruptions will continue – National [Video]

The British government on Saturday ordered an investigation into the country’s “energy resilience” after an electrical substation fire shut Heathrow Airport for almost a day and raised concerns about the U.K.’s ability to withstand disasters or attacks on critical infrastructure.

While Heathrow Airport said it was “fully operational” on Saturday, thousands of passengers remained stuck, and airlines warned that severe disruption will last for days as they scramble to relocate planes and crews and get travelers to their destinations.

Inconvenienced passengers, angry airlines and concerned politicians all want answers about how one seemingly accidental fire could shut down Europe’s busiest air hub.

“This is a huge embarrassment for Heathrow airport. It’s a huge embarrassment for the country that a fire in one electricity substation can have such a devastating effect,” said Toby Harris, a Labour Party politician who heads the National Preparedness Commission, a group that campaigns to improve resilience.

Energy Secretary Ed …