Ceasefire talks between the U.S. and Iran ended in the early hours of Sunday without an agreement, raising questions about what happens when a current two-week truce expires on April 22.
The US military said it would begin a blockade of all Iranian ports on Monday, after talks between the warring sides in Pakistan collapsed with President Donald Trump blaming the Islamic republic's refusal to abandon its nuclear ambitions.
Pakistan is due to host talks between Iran and the United States in a bid to turn a fragile two-week ceasefire into a lasting end to a war that has roiled global energy markets.
Pro-Iran groups have used artificial intelligence to create slick internet memes in English to try to shape the narrative during the war against the U.S. and Israel and foster opposition to it.
The truce reached Tuesday showed signs of unravelling, with Israel bombarding Lebanon and Washington contradicting some of Iran's demands to end the war ahead of planned talks.
Overnight attacks on Saudi Arabia hit a petrochemical complex in a sprawling industrial area in the eastern city of Jubail, a source on the ground told AFP on Tuesday, hours after similar installations in Iran were struck.
In his news conference Monday, President Donald Trump threatened to blow up every bridge and power plant in Iran, action that would be so far-reaching that some experts in military law said it could constitute a war crime.
US President Donald Trump announced on Sunday the dramatic rescue of a downed airman whose fighter jet crashed over Iran, but Tehran claimed the mission was "foiled".
The U.S. military pressed ahead Saturday in a frantic search for a missing pilot after Iran shot down an American warplane, as Iran called on people to turn the pilot in, promising a reward.
