UK bans some Boeing 777s from airspace after engine fire over Denver

Ban comes as Boeing urges airlines to ground all planes with Pratt & Whitney PW4000 engines

The UK has barred from its airspace Boeing 777s with the same type of engine that caught fire in the US at the weekend, as the plane's manufacturer urged airlines to ground all 120 of these aircraft worldwide.

Boeing said carriers using 777 planes with Pratt & Whitney PW4000 engines should suspend operations until full inspections could be carried out, after the United Airlines jet was forced to make an emergency landing having scattered debris over residential areas in Denver.