President Trump has warned Iran he will bomb their country should they not agree to a nuclear weapons deal to restrain the country’s nuclear program, after the Middle Eastern country said Sunday it rejected direct negotiations with the U.S.,

“If they don’t make a deal, there will be bombing and it will be bombing the likes of which they have never seen before,” Trump said in a comment aired Sunday on NBC News.

Trump also warned that an imposition of “secondary tariffs” on Iranian oil would be possible, meaning that countries that buy Iranian oil would be faced with U.S. tariffs.

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