Awwal 10, 1432 H/Feb 13, 2011, SPA -- Turkish President Abdullah Gul arrived on Sunday in the Iranian capital Tehran for a four-day visit primarily aimed at building trade ties. Gul and the accompanying economic delegation were received at the Mehrabad airport by Iranian Foreign Minister Ali-Akbar Salehi, according to dpa. Gul will meet Monday with President Mahmoud Ahmadinejad and Supreme Leader Ayatollah Ali Khamenei to discuss bilateral ties and the latest international developments.