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In the past, Arab separatists in southwestern Iran have claimed attacks against oil pipelines.
Blasts hit a natural gas pipeline in Iran, and an official says it was an act of sabotage →
Iran said Monday it will stage joint naval exercises with Russia and China by the end of the year as tensions in the region escalate over attacks by Yemen-based Houthi forces on commercial ship traffic and U.S. strikes on hostile Tehran-allied militia forces in Iraq and Syria over the weekend.
