According to Turkish President Tayyip Erdogan, Turkey will not say yes to a Swedish and a Finnish NATO membership at the moment, Reuters reports on Monday night.

The statement can be a way of expressing dissatisfaction with the reactions received so far from Sweden.

This is the opinion of Paul T Levin, who is the director of the Department of Turkey Studies at Stockholm University.

- I do not interpret it as a final word.

I interpret this as a way of emphasizing the importance of taking Turkey's reaction seriously.

A way to put weight behind the requirements, rather than it being an end, he says.