Turkish President Abdullah Gul has arrived in Tehran on a four-day official visit to discuss a whole range of topics with ranking Iranian authorities.

The Turkish president was received by Iranian Foreign Minister Ali Akbar Salehi upon arrival at Mehrabad International Airport Feb 13 afternoon.

Gul's trip comes at the invitation of his Iranian counterpart Mahmoud Ahmadinejad. An official welcoming ceremony is scheduled to be held for the Turkish head of state.

President Gul is to hold official meetings with senior Iranian authorities and discuss the promotion of Tehran-Ankara cooperation plus pressing regional and international issues.

The Turkish president is also slated to visit the Iranian cities of Isfahan and Tabriz during his trip.

The Iran-Turkey Joint Economic Cooperation Commission is also planned to be formed during the trip, IRNA reported.

Gul said nuclear issues will not be discussed.