A woman who was allegedly gang-raped while pregnant had her case postponed for the 21st time by the High Court in Johannesburg, The Times reported on Wednesday.

The woman, called Buyisiwe by gender activists, had her case postponed during Tuesday's court appearance because one of the defence lawyers turned out to be the first cousin of one of the accused.

Spokeswoman for the 1-in-9 campaign Carrie Shelver, was quoted as saying: "I'm speechless. The docket went missing. Her statement and the tapes and transcripts also disappeared."

Buyisiwe was gang-raped in 2005, allegedly by eight men who broke into her house in Tembisa. The men allegedly also paraded her in the street naked before raping her again next to a pit toilet.

The case had been moved forward to 14 April following protests by a women's anti-sexual abuse coalition group against the original 27 July trial date.

The trial continues on Friday 17 April.