Addressing foreign ministers from ASEAN nations in an effort to clarify Washington's operational stance in West Asia, the top American diplomat held Tehran directly accountable for escalations in the region, terming it the "troublemaker of the region".
US Secretary of State Marco Rubio on Wednesday accused Iran of failing to honour commitments in negotiations reached with Washington, last month and said Tehran was "not serious about talks," while warning that allowing it to control the Strait of Hormuz would set a "very dangerous precedent