Taraneh Alidoosti - the Iranian star of Oscar-nominated film The Salesman has vowed to boycott the upcoming Oscars in protest at President Donald Trump's 'racist' ban on Muslim immigrants.

The 33-year-old actress - known as the Natalie Portman of Iran - took to Twitter with a message for fans on Thursday.

'Trump's visa ban for Iranians is racist. Whether this will include a cultural event or not, I won't attend the #AcademyAwards 2017 in protest,' she tweeted.

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Taking a stand: The Iranian star of Oscar-nominated film The Salesman says she is boycotting the Oscars in protest at President Donald Trump's 'racist' ban on Muslim immigrants

Trump is reportedly poised to stop visas for travellers from seven Muslim countries, including Iran, for 30 days.

He told ABC News on Wednesday that his plan was not a 'Muslim ban', but targeted countries that 'have tremendous terror.'

The Salesman, directed by acclaimed Iranian filmmaker Asghar Farhadi is nominated for best foreign language film at the Academy Awards, which take place next month.

'Racist': Trump is reportedly poised to stop visas for travellers from seven Muslim countries, including Iran, for 30 days

The Salesman, directed by acclaimed Iranian filmmaker Asghar Farhadi is nominated for best foreign language film at the Academy Awards, which take place next month

Farhadi won an Oscar in 2012 for his film A Separation.

Visa applications from Iraq, Syria, Iran, Sudan, Libya, Somalia and Yemen are all expected to be stopped for a month under a draft executive order published in the Washington Post and New York Times.

The draft order also seeks to suspend the US refugee programme for four months as officials draw up a list of low risk countries.

Alidoosti has been married to Ali Mansoori since 2011 and has a young daughter.