A convicted South African fraudster has been arrested over a racist rant against the country’s President Cyril Ramaphosa on social media.

Kessie Nair is due to appear in court on charges of inciting violence and crimen injuria, or injuring a person’s dignity, police said.

His family said he had mental health issues, and needed urgent medical care.

Racism remains a major issue in South Africa, almost 24 years after white-minority rule ended.

In a video widely shared online, Mr Nair, who is of Indian origin, used a racially derogatory word to describe Mr Ramaphosa.

The president should be “charged for defrauding this nation‚ for oppressing this nation‚ for high treason‚ for being the source to all crime and violence and poor health care and poverty in this so-called true democracy,” he added.

However, Police arrested Mr Nair in Phoenix, a mainly Indian residential area in KwaZulu-Natal province, on Wednesday following outrage over his post.

The governing African National Congress (ANC) in KwaZulu-Natal condemned the video as “scurrilous”, and said Mr Nair should face the “harshest punishment”.

But Mr Ramaphosa’s spokesman, Khusela Diko, said Mr Nair was “clearly a sick person and his racist rant is not deserving of any airtime”, South Africa’s TimesLive news site reported.

“His tirade against the president demonstrates delusional and attention-seeking behaviour,” Mr Diko said, before the arrest.

Mr Nair, a former councillor, was sentenced to six years in prison for fraud in 2005.

He was a nephew of the late Billy Nair‚ who spent about 20 years in prison for fighting the racist system of apartheid, TimesLive reported.

Defending his post, Mr Nair told TimesLive: “I don’t think I’m being racist. I want to make a point‚ which I did. I am prepared to face the consequences. If the nation feels I was wrong‚ I will accept.” he said.