Secretary General Jens Stoltenberg told German daily newspaper Bild today he's focussed on finding a solution and won't speculate over hypothetical questions, including a possible withdrawal of German troops from the Incirlik airbase.
The German government said last week it was considering withdrawing the soldiers from Turkey.
Turkey recently blocked a request for German lawmakers to visit their country's 270 soldiers at the Incirlik airbase. The moved raised the possibility that Germany might relocate planes supporting a multi-national campaign against the Islamic State group.
A similar standoff between Germany and Turkey over access to German troops at the base happened last year.