Iran will not open talks with the United States that will only benefit Donald Trump, supreme leader Ayatollah Ali Khamenei said Friday, insisting the US president's sanctions policy had failed.

US President Donald Trump said on Wednesday Iranian missile strikes on bases in Iraq had not harmed any US troops stationed there and damage was minimal

The military adviser to Iran's supreme leader said the Islamic republic's response to a US strike that killed one of the country's top commanders will be military, CNN reported Sunday.

Iran's supreme leader on Sunday threw his support behind a decision to impose petrol price hikes and rationing, a move that sparked angry protests in the sanctions-hit country.

Iran will maintain its ban on talks with the United States, Supreme Leader Ayatollah Ali Khamenei said on Sunday

Iran's supreme leader Ayatollah Ali Khamenei has called on Iraq to demand US troops leave "as soon as possible", warning that Washington is plotting to remove the Iraqi government.

State televison showed Ayatollah Ali Khamenei watching drills by navy cadets and contacting the commander of naval forces Iran has sent to the Gulf of Aden.

Iranian Supreme Leader Ayatollah Ali Khamenei said on Sunday war was unlikely but called on Iran's armed forces to boost their defence capacities.

Iran has foiled attempts by its foreign enemies to turn legitimate protests into an insurgency to overthrow the Islamic Republic, supreme leader Ayatollah Ali Khamenei said on Tuesday.

Iran's Supreme Leader on Tuesday accused the country's enemies of stirring unrest as the death toll from anti-government demonstrations that began last week rose to 21.

Iranian Supreme Leader Ayatollah Ali Khamenei said on Wednesday Tehran would stick to its 2015 nuclear accord with world powers as long as the other signatories respected it, but would "shred" the deal if Washington pulled out, state TV reported.

Iran's supreme leader called on presidential candidates on Tuesday to champion economic self-sufficiency, further distancing himself from Hassan Rouhani's policy of opening to the West and seeking foreign investment.