US sitcom Roseanne cancelled after star's racist tweets

US sitcom Roseanne has been cancelled after its lead actress made racist comments on social media, yet again.

Roseanne Barr, an outspoken Donald Trump supporter, tweeted that former adviser to President Obama Valerie Jarrett was part of the Muslim Brotherhood and compared the African-American woman to an ape.

"Muslim brotherhood & planet of the apes had a baby=vj", she wrote in response to a thread accusing Ms Jarrett of covering up CIA spying.

Shortly afterwards she apologised, deleted the tweet and announced she would be leaving Twitter.

In a statement, ABC announced that in light of Barr's comments they would be pulling Roseanne from the air.

"Roseanne's Twitter statement is abhorrent, repugnant and inconsistent with our values, and we have decided to cancel her show."

Barr has a history of making offensive comments online, including labelling Muslims and Palestinians "Nazis", labelling Israel a "Nazi state" and calling for a nuclear attack on the non-Jewish students and staff of the University of California.

Just before the Roseanne cancellation was announced, comedian Wanda Sykes tweeted that she would not be returning to the sitcom for a second season.

Co-star Sara Gilbert also tweeted about Barr's remarks, calling them "abhorrent".

Roseanne, which centres on a low-income American family, originally aired from 1988 to 1997. It was revived for a new season in March 2018 and a second season was ordered after high ratings.

The reboot was popular with conservative Americans as it portrayed lead character Roseanne Conner as a Donald Trump supporter.

President Trump called Barr personally to congratulate her on the new season's high ratings.

Social media presenter Aziz Al-Sa'afin spoke to Duncan Garner.

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