Finland and Sweden formally applied to join NATO on Wednesday, following Russia's Feb. 24 invasion of Ukraine.

Erdogan said he had discussed the issue with the Dutch prime minister on Friday and would also speak to Britain on Saturday. He did not specify the people he would speak to in Finland and Britain.

"Of course we will continue all these discussions for the sake of not interrupting diplomacy," Erdogan told reporters.

Ankara says Sweden and Finland harbour people linked to the Kurdistan Workers Party (PKK) militant group and followers of Fethullah Gulen, whom Ankara accuses of orchestrating a 2016 coup attempt.

Western leaders have expressed confidence that Ankara's objections will not be a roadblock for the NATO accession process of the Nordic countries without spelling out how Turkey's position could be changed.

Erdogan on Friday criticised the West for not viewing the Syrian Kurdish YPG militia as a terrorist group while viewing the PKK as such. Turkey views both groups as identical.

"Currently there is a terrorist organisation in many European countries, especially in Germany, in the Netherlands, in Sweden, in Finland and in France," he said.

Erdogan has previously said that Swedish and Finnish delegations should not bother coming to Ankara to convince it to approve their NATO bids and that "terrorists" would have to be returned to Turkey before approval is given.

(Reporting by Ece Toksabay and Can SezerWriting by Daren ButlerEditing by Jonathan Spicer and Nick Macfie)