Turkey's President Recep Tayyip Erdogan (L) and Iran's President Hassan Rouhani (R) review a guard of honour during an official welcoming ceremony ahead of their meeting at the Turkish presidential complex in Ankara on December 20, 2018. (AFP photo)

ANKARA, Dec. 20 (Xinhua) -- Turkey will continue to stand by Iran despite the "unjust" sanctions that the U.S. imposed on the country, Turkish President Recep Tayyip Erdogan said on Thursday.

Erdogan made the remarks at a joint press conference with his Iranian counterpart Hassan Rouhani in the capital Ankara.

"Turkey does not support the U.S. sanctions which put regional stability and security into danger," Erdogan said.

He vowed that Turkey and Iran will join their efforts to end clashes and ensure regional security.

According to Erdogan, the two countries aimed to increase bilateral trade volume of 30 billion U.S. dollars from the current 11 billion dollars.

Rouhani said that Tehran will work with Ankara on protecting Syria's territorial integrity.

Iran, Turkey and Russia will continue with the Astana talks on Syria's future, he said, adding that the next summit will be held in Russia.

Erdogan and Rouhani chaired the 5th Meeting of the Turkey-Iran High Level Cooperation Council in Ankara on Thursday.