Iranian President Hassan Rouhani underlined the necessity for the establishment of peace and stability in the regional states, especially in Syria, and said Tehran and Ankara resolved to fight extremism and terrorism.

Iranian President Hassan Rouhani underlined the necessity for the establishment of peace and stability in the regional states, especially in Syria, and said Tehran and Ankara resolved to fight extremism and terrorism.

"Iran and Turkey are resolved to fight violence, extremism and terrorism and they use all their possibilities and power to this end and they are determined to increase their cooperation and spare no efforts in this regard," Rouhani said in a joint press conference with his Turkish counterpart Abdullah Gul in Ankara on Monday.

He further stressed that ending war, bloodshed and killings in the region and establishment of peace and security in the regional states, especially in Syria and Iraq, are among the crucial topics on which Iran and Turkey should strike an agreement and cooperate.

He also underlined the two countries' willingness to expand bilateral relations and mutual cooperation in different political, economic, cultural and tourism fields, and said Tehran and Ankara can double the volume of their trade exchanges.

The Iranian president started his official visit to Turkey on Monday to discuss the latest developments on the international and regional scenes and explore new avenues for reinvigoration of all-out ties.

Iran and Turkey increased their trade transactions in the first two months of 2014 as compared with the figures of the corresponding period in the last year.

The value of trade transactions between Tehran and Ankara hit $2.115bln in January and February, the trade data recently released by the Turkish government said.

The two countries have in recent years increased their cooperation in all the various fields of economy, security, trade, education, energy and culture.

Iranian and Turkish officials have repeatedly stressed the necessity for stronger relations and increasing their bilateral trade to $30bln by 2015.