Iran crisis: Trump ‘unafraid’ to use ‘lethal force’ on Iran but wants diplomacy to be ‘first option’, says White House – as it happened

This live blog is now closed.

• The streets are full of blood': Iranian protests gather momentum as regime cracks down

• Iranian student killed during protests was shot in head from close range'

• Analysis: Unpredictable Trump weighs up Iranian pleas for help against calls for restraint

• People in Iran: share your views on the current situation

Iran's foreign ministry spokesperson, Esmaeil Baghaei, has said communication lines with the US remain open, as the Trump administration continues to weigh the option of military strikes.

This channel of communication between our foreign minister (Abbas Araghchi) and the special envoy of the president of the United States is open," Baghaei said, in apparent reference to Steve Witkoff.

Always opposes interference in other countries' internal affairs, maintains that the sovereignty and security of all countries should be fully protected under international law, and opposes the use or threat of use of force in international relations.