Organisation of Islamic Cooperation says foreign ministers from countries in pan-Islamic body will meet in Saudi Arabia 'to discuss the serious Israeli escalation

Riyadh looks to present unified front against threats from Tehran; in response, Iranian president tells Arab leaders to focus on Palestinian statehood

Riyadh hopes to rally support against its arch-rival over attacks on oil installations

Riyadh's foreign minister says attacks on oil installations must be addressed with 'firmness and determination'