Donald Trump says Iran can be destroyed in a single night and warns Tuesday could be that night if no deal is reached.
Iran rejects the warning, as tensions continue to rise across the region.
Trump says attacks could target power plants and bridges, and demands Iran give up nuclear ambitions and reopen the Strait of Hormuz.
Ismail Baghaei criticizes the US position, saying threats alongside talks only worsen the situation. Iran also claims the US carried out two attacks during ongoing negotiations.
Meanwhile, exchanges of attacks continue across the region.
In Kuwait, a drone strike on the Al Salem airbase injures 15 Americans.
In Lebanon, Hezbollah launches drone attacks targeting Israeli troops and tanks, while Israeli airstrikes in southern Lebanon kill at least three people.