ISTANBUL, Jul. 12 (Reuters) - Turkish President Tayyip Erdogan said on Friday it is not possible for NATO to continue its partnership with the Israeli administration.

"Until comprehensive, sustainable peace is established in Palestine, attempts at cooperation with Israel within NATO will not be approved by Turkey," Erdogan said at a news conference at the NATO summit.

Turkey also continues its diplomatic efforts to end the Russia-Ukraine war, he said.

Erdogan said as well that he has instructed Turkish Foreign Minister Hakan Fidan to meet Syrian President Bashar al-Assad to start to restore relations with Syria.

Turkey will extend an invitation to Assad "any time" for possible talks to restore relations between the two neighbours, Erdogan had said on Sunday.

Regarding F-16 sales to Turkey, Erdogan said: "I talked to Mr. Biden. 'I will solve this problem in 3-4 weeks' he said'".

In March, the U.S. Senate defeated an effort to stop a $23 billion sale of F-16 jets and modernization kits to Turkey allowed by President Joe Biden's administration after Turkey approved Sweden joining the NATO alliance.

He also said Turkey expects solidarity from NATO allies in its fight against terrorism.

"It is not possible for us to accept the crooked relationship that some of our allies have established especially with the PYD/YPG, the extension of the terrorist organization PKK in Syria," he said.

Turkey says the YPG militia is a terrorist organisation, closely tied to the Kurdistan Workers Party (PKK) militant group. Turkey's Western allies list the PKK as terrorist group, but not the YPG.

Turkey's goal is to become a permanent member, not just an observer, of the Shanghai Cooperation Organization (SCO), Erdogan also said.

The SCO is a security, political and economic club launched in 2001 by Russia and China and Central Asian states as a counterweight to Western alliances.

Photo from Reuters