While it's hard to gauge the regime's popularity, one analyst told NBC News "there is massive unrest and unhappiness" among large swaths of the population.

Black smoke rose over Tehran as flames tore through a commercial market on Tuesday, the latest in a series of fires and explosions across Iran.

By bnm Tehran bureau Tehran's interim Friday prayer leader Ahmad Khatami declared that Iran does not seek nuclear weapons, stating the country's religious doctrine prohibits weapons of mass destruction,

A major fire struck an Iranian military site in eastern Tehran as U.S. -- Iran nuclear talks continued in Oman under the shadow of President Trump’s warnings. Iranian media said flames erupted inside a Joint Staff facility,

Iran protests entered day 24 with 4,519 confirmed deaths. Supreme Leader Ayatollah Ali Khamenei backs security forces amid nationwide demonstrations.

Delegations from the United States and Iran concluded indirect talks in the Gulf Arab state of Oman Friday. It was the first round of negotiations between the two sides since the US and Israel struck the Islamic Republic last summer.

Images that capture the scale of the brutally suppressed protests that swept Iran between December 28 and January 11 are rare. Some NGOs report at least 18,000 people dead. Iranian photographer Yalda Moaiery managed to transmit her images of the January 8 demonstrations and the funeral of a man killed by the regime.

WASHINGTON, D.C. — President Donald Trump said Wednesday that he and Chinese President Xi Jinping discussed the situation in Iran in a wide-ranging call as the US administration pushes Beijing and others to further isolate Tehran.