Iranian supreme leader Ayatollah Ali Khamenei has said that US President Donald Trump has shown “the real face of America”.
In his first speech since Mr Trump took office, Mr Khamenei said the president had exposed “political, economic, moral and social corruption” in the US.
The response follows Mr Trump’s imposition of new sanctions on Iran over a ballistic missile test.
Mr Trump has also been a fierce critic of the landmark nuclear deal struck between Iran and world powers in 2015.
Mr Khamenei, addressing military commanders in the capital Tehran, said Mr Trump was trying to frighten Iranians, but would fail.