Nokia's (NOK1V.HE) chief executive Stephen Elop said he was committed to creating smartphones based on Microsoft's MSFT.o Windows Phone operating system, in a field increasingly dominated by Google's (GOOG.O) Android software.

"We announced this strategy two years ago, we are completely focused on Windows (...) and that continues to be our strategy," he said at the Mobile World Congress in Barcelona on Monday.

Nokia's Lumia range of smartphones have been well received by critics, but sales have been dwarfed by Android devices from the likes of Samsung (005930.KS) as well as Apple's (AAPL.O) iPhone.