(CNN)-- Iran has declared a two-day public holiday in Tehran after air pollution hit dangerous levels. All schools, public offices, universities and banks in the Iranian capital will be closed ...

US President Donald Trump on Sunday (local time) threatened Iran with "possible bombing" as well as the imposition of secondary tariffs on the Islamic Republic if they do not comply with the nuclear ...

From time to time, authorities respond to the pollution with similar measures. Tehran’s air quality is among the worst in the world. The smog is mostly caused by heavy traffic due to millions of ...

Al-Monitor is an award-winning media outlet covering the Middle East, valued for its independence, diversity and analysis. It is read widely by US, international and Middle East decision makers at the ...

Iran and the US held their first round of talks about Iran’s nuclear program. Both sides described the talks as “positive” ...

Al-Monitor is an award-winning media outlet covering the Middle East, valued for its independence, diversity and analysis. It is read widely by US, international and Middle East decision makers at the ...

President Trump’s new deal aimed at curbing Iran’s nuclear program is unacceptable, officials in Tehran said as they continue to reject direct talks with the US. Iranian officials accused the ...

Iran and the United States will hold more negotiations next week over Tehran's rapidly advancing nuclear program, Iranian state television reported Saturday at the end of the first round of talks ...