DUBA - Kuwait's emir began a visit to Iran on Sunday, the first by a ruler of the US-allied Gulf Arab state since the 1979 Islamic revolution, underscoring improving ties between Tehran and its Arab neighbors.

Regional television stations showed Iranian President Hassan Rouhani escorting Sheik Sabah al-Ahmed al-Sabah to review an Iranian honor guard upon the emir's arrival in Tehran.

Rouhani, elected last year, has been trying to lead Shi'ite Muslim Iran out of years of isolation and his decision to engage with world powers in talks about Tehran's nuclear program has been welcomed by some in the Sunni Muslim states on the other side of the Gulf.

Please LIKE our Facebook page - it makes us stronger