Iran will not accept any agreement ending its conflict with the US unless there is certainty that the Iranian people's rights are secured, top negotiator Mohammad Baqer Qalibaf said on Sunday according to state media. "There is no trust in the enemy's words and promises. Our only criterion is to achieve tangible results before we fulfill our commitments in return," he added after taking an oath as the re-elected speaker of parliament alongside its presidium. Hours earlier, US President Donald Trump said he had secured guarantees from Iran that it would not develop nuclear weapons. Trump has said his priorities for any deal include stopping Iran from any nuclear weapon development and re-opening the blockaded Strait of Hormuz.