President Donald Trump warned the ceasefire in the Middle East war was on "life support" Monday after rejecting the latest counteroffer from Iran, which said its military stood ready to respond to any act of aggression.

Iran has given no indication of whether it will accept the US plan to end the war and reopen the Strait of Hormuz a day after renewed clashes threatened the fragile truce.

US president calls Iranian response ‘totally unacceptable’ while Tehran says it will retaliate against any new US strikes or foreign warships in strait of Hormuz