ISLAMABAD: Pakistan on Monday expressed concerns over growing tension between Saudi Arabia and Iran and called for the resolution of difference through peaceful means. While condemning the attack on Saudi embassy in Tehran, Pakistan said it is the responsibility of the host country to provide full safety to all diplomatic missions and their personnel, according to a statement issued by the Foreign Affairs Ministry. Terming the attack on Saudi mission ‘unfortunate and deeply regrettable’, the statement said the extremist elements can take advantage of any disunity in the Muslim community. It called for resolution of differences through peaceful means in the larger interest of the Muslim unity. Relations between Sunni-ruled Saudi Arabia and Shia-ruled Iran have been strained for decades, with Riyadh frequently accusing Tehran of interfering in Arab affairs.