Trump has warned Iran that the U.S. could set the country 'back to the stone ages,' including targeting power plants and bridges.
Hamas says its leader Ismail Haniyeh was assassinated in an Israeli airstrike on his residence in Tehran, Iran.
The U.S. and Iran have conducted a prisoner swap in a rare diplomatic breakthrough amid high tensions between Tehran and Washington.
The Associated Press has found that a hacking group often nicknamed Charming Kitten has spent the past month trying to break into the personal emails of more than a dozen U.S. Treasury officials.
A high-rise building in Tehran engulfed by fire collapsed on Thursday, killing at least 30 firefighters and injuring some 75 people, state media reported.
President Obama says every path to a nuclear weapon will be cut off for Iran under a historic agreement announced in Vienna. He says the nuclear agreement with Iran ensures that Iran "will not develop a nuclear weapon."