Syria and Iran signed five memorandums of understanding in Tehran on Tuesday to help improve bilateral relations. The documents cover agriculture, mining, petroleum extraction, animal husbandry and telecommunications. A sixth document will be signed in the near future to enable Iranian investment in Syrian ports, IRNA reported The documents were signed by the two sides' economy ministers, in the presence of First Vice President Es'haq Jahangiri and visiting Syrian Prime Minister Imad Khamis. On the same day, the two high-ranking officials sat down for talks and later attended a joint press conference. Jahangiri told the conference that the recent achievements gained in the fight against terrorists operating in Syria are the result of steadfastness of the Syrian people, their army, fighters of the resistance front and coordination between the Arab country and the Islamic Republic. Khamis said the Syrian government is developing bonds of friendship with Tehran. The Syrian premier said Syrians will rebuild their war-stricken areas alongside their anti-terror fight. Arriving in Tehran on Monday, Khamis was also expected to meet President Hassan Rouhani and Secretary of Supreme National Security Council Ali Shamkhani on Tuesday.