DOHA - Kuwait's foreign minister will make a rare visit to Tehran on Wednesday to deliver a message to President Hassan Rouhani on a "basis of dialogue" between Gulf Arab states and arch-rival Iran, Kuwait's state news agency reported.
The visit comes days after Rouhani said countries including Kuwait had offered to mediate in the escalating feud between Shi'ite Muslim Iran and Sunni power Saudi Arabia.
Kuwaiti news agency KUNA quoted Foreign Minister Sheikh Sabah Khaled al-Sabah as saying relations between Iran and the Gulf Cooperation Council (GCC) of six Arab states "must be based on the UN Charter and principles of international law".
Iran and Saudi Arabia, the dominant member of the GCC, back opposite sides in civil wars in Syria and Yemen.
Riyadh and some other members of the GCC accuse Tehran of using sectarianism to interfere in Arab countries and build its own sphere of influence in the Middle East.
Iran, set to benefit from an easing of international sanctions after its nuclear deal with world powers in 2015, denies interfering in Arab countries.