ISLAMABAD: Diplomats worked through back channels Tuesday to arrange a new round of talks between the United States and Iran after Washington enacted its blockade of Iranian ports, while Tehran threatened to retaliate by striking targets across the war-weary region. US President Donald Trump said a second round of talks could happen “over the next two days,” telling the New York Post the negotiations could be held again in the capital of Pakistan. United Nations Secretary-General Antonio Guterres concurred, saying it’s “highly probable” that talks will restart.