Tensions between the U.S. and Iran continued to rise on Saturday as the Trump administration ramped up the U.S. military presence in the Middle East. It comes as explosions attributed to a gas leak put people inside Iran on edge. NBC News' Keir Simmons reports.
The United States warned Iran on Saturday over its plans to conduct live-fire drills close to U.S. forces in the region, as partners sought to de-escalate rising tensions between the two nations
