Tensions between the U.S. and Iran spilled over at the United Nations after U.S. envoy Mike Waltz warned Iran’s ambassador Amir Saeid Iravani to be “careful” while speaking on American soil. The warning followed a heated UNSC exchange as Iran ramps up drone and missile attacks on U.S. assets across the Middle East. The diplomatic clash comes amid reported strikes near American diplomatic facilities in the Gulf, deepening the confrontation between Washington and Tehran.