South Africa's ruling ANC party will formally request that President Jacob Zuma step down after he refused to resign.
The reported decision to "recall" Mr Zuma followed marathon talks by senior party officials that continued into the early hours of Tuesday.
If Mr Zuma, 75, still does not budge, he will face a vote of confidence in parliament that he is expected to lose.
He has been the leader since 2009 but has been dogged by corruption allegations.
The ANC has not officially confirmed its plans, but party sources have described them to South African media outlets and Reuters news agency.
Mr Zuma has resisted increasing pressure to quit since December when Cyril Ramaphosa replaced him as leader of the ANC.
It is unclear how Mr Zuma will respond to the formal request to step down, which is expected to be issued later on Tuesday.
Earlier, Mr Ramaphosa left the meeting of the ANC's national executive committee to travel to Mr Zuma's residence, where he is said to have told the president he would be recalled if he did not step down. He later returned to the ANC conclave.