Deputy President Cyril Ramaphosa should stop criticising the African National Congress (ANC) in public, the ANC Youth League (ANCYL) says.

"People must stop saying negative things about the organisation on public platforms that create a perception that becomes true," ANCYL secretary general Njabulo Nzuza told News24 on Tuesday.

He said the league would ask ANC secretary general Gwede Mantashe to intervene.

Ramaphosa has said the "rot has set in" and called for corruption to be rooted out.

Allegations of families and people unduly influencing government appointments and contracts should be "of great concern" to the ANC, he said at a memorial for former South African Communist Party leader Chris Hani in the Eastern Cape on Sunday, Fin24 reported.

His comments were seen as the start of his bid to succeed President Jacob Zuma at the ANC’s elective conference in December.

Nzuza said Ramaphosa’s claims that party members were being "bought" were untrue. The league had criticised former finance minister Pravin Gordhan for making similar remarks.

"We have a duty to protect the dignity and image of the ANC, yet you have senior leaders saying there is corruption.

"The thought process to us is we have to go out there and correct the mistake in the public domain because the statement was made in the public domain," Nzuza said.

The ANCYL dismissed the SACP’s claims about an assassination attempt on its second deputy general secretary Solly Mapaila as attention seeking.

"Some people use tactics to get themselves relevant. I can wake up one morning and say because I have been vocal on certain issues there is a threat on my life."

The SACP claimed there was a gunman at the commemoration of the 24^th anniversary of Hani’s murder, which was held at the Thomas Nkobi cemetery on the East Rand, on April 10.

A figure holding what the SACP believed was a gun appears in a News24 video of the event, at which Mapaila was booed. Mapaila aborted his speech because of the heavy downpour that began as he took to the stage.

The only drama Nzuza saw was the rain.

"If people say they were assassinated by getting wet as a result of the rain, I can agree with them to say the rain hit so hard that maybe they felt threatened," Nzuza said.

The SACP had said it would report the matter to police.

Tensions between the ANC and SACP had been mounting since the party called on President Zuma to step down after he changed his executive on March 30, without consulting the alliance partners and the ANC's top six.

Nzuza declined to express an opinion about the ideal candidate to take over from Zuma. He said the league would have to work through its differences of opinion about a candidate.

ANCYL president Collen Maine had previously said their choice of candidate would shock the country, suggesting it would not be Nkosazana Dlamini-Zuma. Nzuza said the next ANC leader should be a woman.

The ANC was experiencing ructions because it was an elective conference year. He believed party members would reach agreement and back whoever emerged victorious in December.

"I can guarantee you there will be no breakaways," he said.