Saudi Arabia will use “all available options” to defend itself against Iranian “threats” that might trigger “unwanted military confrontation,” its former intelligence chief told a Gulf security conference. Prince Turki al-Faisal’s comments to the conference in Bahrain late on Tuesday came after Tehran demanded Riyadh rethink its offer to make up for any oil lost to world markets as a result of threatened curbs on Iranian exports. “Any threat to our interests or security will force us to use all available options to defend our interests, and national and regional security,” Faisal said in remarks carried by the Al-Arabiya news channel. “The mounting escalation and persistent tensions might end up in an adventure with unpredictable consequences or in an unwanted military confrontation.”