Michael O'Neill's reign as Northern Ireland manager has got off to a bad start after a 3-0 defeat to Norway at Windsor Park.
Havard Nordtveit gave his side a half-time lead thanks to his strike in the 44th minute.
Their lead was doubled with two minutes to play as Tarik Elyounoussi turned before firing in.
A disappointing night for O'Neill was completed when Espen Ruud's volley found the net in the second minute of injury time.