TEHRAN, Iran (AP) — U.S. President Donald Trump has issued an expletive-filled threat to escalate strikes on Iran if it doesn’t open the Strait of Hormuz by his Tuesday deadline. It follows the U.S. rescue of an aviator whose plane was downed by Iran. Trump on Sunday promised strikes on Iran’s power plants and bridges. Iran shows no sign of backing down and has hit targets in Gulf Arab countries. Both sides threaten civilian targets. War crime concerns have been raised. Diplomatic efforts continue with countries like Oman and Pakistan trying to mediate. The war, now in its sixth week, has already caused significant casualties and economic disruption.