Trump's announcement came after an expected trip by Vice President JD Vance to Pakistan for a peace talks with Iranian officials was put on hold.

By Steve Holland, Enas Alashray and Mubasher Bukhari WASHINGTON/CAIRO/ISLAMABAD, April 21 (Reuters) - Iran said on Tuesday it had still yet to decide whether to attend last-ditch peace talks with the United States,

The United States and Iran have signalled they will hold a new round of ceasefire talks in Pakistan, two regional officials said Tuesday, as leaders on both sides warned they were prepared for more fighting if a fragile two-week truce expires without a deal.

Tehran’s ‌armed forces ready to deliver ‘decisive’ response to any renewed hostile ​action as ceasefire nears end

US President also said he would continue the US Navy's blockade of Iran's trade by sea, considered an act of war by Tehran

Trump called Iran’s counter peace proposal “totally unacceptable,” dimming the prospects of an imminent deal to end the war.

Iran has warned the US to accept Tehran’s latest peace proposal as tensions over the fragile ceasefire continue to escalate

Trump and Iran remain locked in a tense stalemate with dueling blockades as the ceasefire falters and nuclear deal negotiations hit a dead end.