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

In region, Bolton says Tehran has only one reason to boost uranium enrichment -- 'to reduce the breakout time to produce nuclear weapons'

Abbas Araghchi meets with his Qatari counterpart in Doha, expresses readiness for talks on stability and security of the region

Saber-rattling adds to tensions in Gulf, as Tehran reiterates it does not want talks with Trump administration

John Bolton visit coincides with regional summits in Saudi Arabia, as US and Arab allies seek to further isolate Iran

America maintains a vast network of bases, troops and assets throughout the region, to the chagrin of Tehran