BRUSSELS - The United States is expected to broaden its ban on in-flight laptops and tablets to include planes from the European Union, a move that would create logistical chaos on the world's busiest corridor of air travel.

Alarmed at the proposal, which airline officials say is merely a matter of timing, European governments held urgent talks on Friday with the US Department of Homeland Security.

The ban would affect trans-Atlantic routes that carry as many as 65 million people a year on over 400 daily flights, many of them business travelers who rely on their electronics to work during the flight.