Iranian President Hassan Rouhani holds talks with his Turkish counterpart Recep Tayyip Erdogan in the capital, Ankara.
The two presidents met on Saturday, a day after the conclusion of the 13th summit of the Organization of Islamic Cooperation (OIC) in the Turkish city of Istanbul.
Rouhani and Erdogan co-chaired the high-level Strategic Cooperation Council meeting following bilateral talks.
Iranian, Turkish officials also signed eight documents for cooperation in various fields in the presence of Rouhani and Erdogan.
During the ceremony, Erdogan said Iran and Turkey are required to promote their bilateral economic relations which have been declined in past few years.
He said there are some limitations in the relations between Tehran and Ankara, adding that those restrictions must be removed.
The Turkish president added that terrorism and sectarianism are the biggest challenges in the region.
Erdogan added that there are some differences of opinion between Iran and Turkey on regional issues, adding, however, that the two sides seek an end to the bloodshed in Iraq and Syria.
Rouhani, for his part, said the Organization of Islamic Cooperation (OIC) must follow two key objectives, namely unity in the world of Islam and the realization of the rights of Palestinians, adding that Iran will stand by the Muslim body as long as it maintains these two issues as its main goals.
The Iranian president attended the 13th OIC summit in the Turkish city of Istanbul on Thursday and Friday.
The Iranian president added that the negotiations between him and Erdogan focused on promoting the role of women in the Islamic community, combating extremism, violence and terrorism, and promoting unity in the Muslim world and bridging the gap between Muslim faiths.
Rouhani also said Iran, Turkey need to remove the obstacles in the way of the expansion of bilateral ties, adding that Tehran can help Turkey meet its energy needs.
He said Iran and Turkey should help regional countries like Yemen, Syria, Afghanistan resolve their problems, warning, however, that no foreign power should be allowed to make decisions on regional issues.
Elswhere, the Iranian president said Islamophobia is a plot hatched by the Zionist regime, adding that Iran and Turkey can introduce true Islam to world to counter the move.
The Iranian president met Turkish Prime Minister Ahmet Davutoglu earlier on Saturday in Istanbul. The two sides stressed the importance of fighting terrorism as a common threat to all regional countries and the entire world.