text: Why not?
  
  Can you provide some further information, because it doesn't look like turning left here is forbidden. No signs.
  
  StreetView ref:
  https://www.google.no/maps/@59.8399614,10.4339912,3a,75y,359.6h,59.32t/data=!3m6!1e1!3m4!1sWKKmcsv1dRrMgXQj--FcWg!2e0!7i13312!8i6656!6m1!1e1?hl=en