DUBAI: Iran's Supreme Leader Ayatollah Ali Khamenei accused Joe Biden and Donald Trump of damaging the reputation of the United States in a rare direct criticism of US presidents, Iran's official news agency IRNA reported on Tuesday.

"These days, the US is being hit in ways it never computed. The two American presidents - the current and former heads of state - have joined hands to tarnish the image of the United States," Khamenei said without elaborating.

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