Turkish Prime Minister Recep Tayyip Erdogan has met Iranian leaders in Tehran to discuss regional tensions and bilateral trade.
Mr. Erdogan had separate meetings Sunday with Iranian President Mahmoud Ahmadinejad and Vice President Parviz Davoodi.
Iranian state media say Mr. Erdogan raised Iraq's security situation during the talks. Iran and Turkey share borders with Iraq and are concerned about sectarian violence in the country.
The Turkish prime minister also said he would discuss boosting trade with Iran. He is accompanied on the visit by Turkish oil and gas officials.
Relations between Iran and Turkey have not always been smooth. Turkey has good relations with the United States and Israel, two countries viewed as hostile by Iran's government.
Some information for this report was provided by AFP and AP.