France's Foreign Minister Jean-Noel Barrot said Tuesday he had summoned the Iranian ambassador to object to what he described as "state violence unquestioningly unleashed on peaceful protesters" in Iran.

U.S. President Donald Trump announced a 25-percent tariff on any country doing business with Iran, ramping up pressure as a rights group estimated a crackdown on protests has killed at least 648 people.

Iran's parliament speaker on Monday described the response to a protest wave that has gripped the Islamic republic as a "war against terrorists", as he addressed a vast pro-government rally in Tehran.

The EU said Monday conditions were not yet ripe to talk to Russia's Vladimir Putin over the war in Ukraine, after the leaders of France and Italy said it was time Europe re-engaged.

Cuba's leader said Monday there were "no conversations" with the United States, after President Donald Trump urged the communist-ruled island to "make a deal" or pay the price.

Iran is fully prepared for conflict but also ready for negotiations, its foreign minister said on Monday, as U.S. President Donald Trump said the Iranian leadership was seeking talks after he threatened to intervene militarily over a crackdown on protests.

U.S. President Donald Trump has said that Iran's leadership had called him seeking "to negotiate" after he repeatedly threatened to intervene militarily if Tehran killed protesters.

A channel of communication is open between Iran and U.S. President Donald Trump's special envoy for the Middle East despite the lack of diplomatic relations, the Iranian foreign ministry spokesman said Monday.

At least 192 people have been killed in two weeks of protests against the government and economic strain in Iran, a rights group said on Sunday, in a sharp rise from an earlier death toll of 51.

Iranians took to the streets in new protests against the clerical authorities overnight despite an internet shutdown, as rights groups warned on Sunday that authorities were committing a "massacre" to quell the demonstrations.