Emergency declared on board flight from London to Canada

The flight which was scheduled to land at Edmonton in Canada at 12.59 local time has been forced to land in Iceland following a one and a half hour hold over the European island. The Westjet flight, number WS27, left London at 10.55am and was just over two hours into its journey when the pilots made an 'emergency squawk'. The flight made its way to Keflavik International Airport in Iceland but before it did it turned around on its path and spent almost an hour and a half over the Atlantic.
Read more: http://www.express.co.uk/news/world/709286/Flight-emergency-declared-on-board-flight-from-London-to-Canada?source=Snapzu