Police have drawn a tight veil of secrecy around the Soweto bombings, including reversing an earlier decision to issue an identikit of two suspects, fuelling speculation that they are close to making an arrest.
But there was confusion on Friday about the investigation after safety and security minister Charles Nqakula said an arrest was imminent.
Shortly afterwards, Nqakula's spokesperson Andre Martins said we shouldn't "read anything into the minister's statement" because there had been "no new developments".
Earlier the police refused to explain their decision to cancel plans to issue an identikit of two suspects, who were initially thought to be two white men seen in the vicinity of a petrol station where a bomb was discovered and defused.
Police Director Phuti Setati, said on Friday that no identikit would be issued at all. When asked why, Setati said: "We reserve our comment at this stage."
Pan Africanist Congress general secretary Thami ka Plaatjie suggested on Friday that elements in the police might have planted the bombs.
"Very few white people can just roam around Soweto in the middle of the night without being noticed," he said.
Ka Plaatjie suggested that the bombers may not have been noticed because they may have been in police uniforms. - Staff reporters and Sapa