An NBC News film crew was given exclusive access to the National Aerospace Park on Wednesday, a rarity for a foreign news organization.

US lawmakers have called for the Trump administration to respond to reporting that Chinese firms are helping Tehran rebuild its ballistic missile program in defiance of United Nations sanctions.

Iran claims missile capacity now exceeds pre-war levels after June bombardment of nuclear facilities by Israel and U.S. during 12-Day War conflict.

Authorities have begun cutting off water at night in the capital, according to reports. Iran’s president Masoud Pezeshkian has even warned of possible evacuations if “it doesn’t rain soon”. Images have surfaced on social media showing university students protesting water shortages on campuses.

The International Atomic Energy Agency has not been able to verify the status of Iran’s near weapons-grade uranium stockpile since Israel and the United States struck the country’s nuclear sites during the 12-day war in June,

"Today, the United States faces a legitimacy crisis not only in the Middle East but also in Latin America and East Asia," Ali Akbar Velayati, Khamenei's adviser on international affairs, told Iran's state media in an interview published on Tuesday. Newsweek has contacted the U.S. State Department for comment.

The country of more than 90 million is facing an unprecedented water and energy crisis as reservoirs shrink to record lows, endangering drinking water and power supplies.