US urges Iran, Israel to 'calm tensions, not exacerbate them'
US urges Iran, Israel to 'calm tensions, not exacerbate them'
US Secretary of State Antony Blinken warns both Iran and Israel to avoid actions that "raise the risk of dangerous outcomes" in the Middle East.
Iran has vowed a response after Israel's suspected killing of Hamas political leader Ismail Haniyeh in Tehran, an assassination at which US President Joe Biden has hinted at frustration.