Tehran will press on with the Middle East war until the United States and Israel face “permanent regret and surrender”, the spokesperson of its armed forces’ unified command has said, Reuters reports, citing the semi-official Tasnim news agency.

Ebrahim Zolfaqari, spokesperson of the Khatam al-Anbiya central headquarters, responded that US and Israeli assessments of Iran’s military capabilities were “incomplete”.

Iran would step up its military actions, with “more crushing, broader and more destructive” attacks in store for its adversaries, he added.

The threat followed comments by US President Donald Trump that Washington would hit Iran “extremely hard” within weeks.