THE MMD National Executive Committee (NEC) has endorsed the expulsion of national secretary Richard Kachingwe from the party.
Senga Hill Member of Parliament (MP) Kapembwa Simbao has since been appointed to act until an election is conducted.
MMD national chairperson Kabinga Pande announced at a media briefing in Lusaka yesterday that the NEC resolved on Monday to expel Major Kachingwe.
"Yesterday (Monday), December 3, 2012, NEC met and made the following decision that Ambassador Richard Kachingwe has been expelled from the party with immediate effect," Mr Pande said.
He said the letter Maj Kachingwe wrote to invalidate MMD leader Nevers Mumba's presidency was illegal because he was not authorised by the NEC or national convention to do so.
Mr Pande said the decision to expel Maj Kachingwe followed a petition brought by party MPs to Dr Mumba demanding the immediate removal of the national secretary.
"The MPs charged that Maj Kachingwe was highly compromised by the Patriotic Front (PF) Government based on his own confessions and conduct.
"The president tasked our two vice-presidents and myself as chairman to interview Major Kachingwe concerning the serious allegations raised against him," he said.
Mr Pande, who is Kasempa MP, said the committee reported back to Dr Mumba who later called Maj Kachingwe to discuss the concerns of the petition.
He said the MMD MPs who brought the petition also threatened that they would withdraw their monthly contributions to the secretariat until Maj Kachingwe was removed from the office.
In his discussion with Maj Kachingwe, Mr Pande said, Dr Mumba told him "to take leave for three months on suspension" while the NEC looked into the case and that they all agreed with that decision.
Unfortunately, Mr Pande said, the administrative procedure angered Maj Kachingwe who single-handedly purported to invalidate a democratically-elected MMD leader.
Mr Pande described Maj Kachingwe's decision as a singular act of indiscipline which was unprecedented in Zambia's political history.
"Arising from this gross misconduct, the NEC was left with no option but to expel Maj Kachingwe with immediate effect according to article 19N of the party," Mr Pande said.
On reports of MMD being divided, he said Maj Kachingwe's matter was purely a case of discipline.
Mr Pande said the former ruling party was strong and united under Dr Mumba's leadership, adding that he was democratically elected.
He said Dr Mumba resigned from the Reform Party and joined MMD where he won elections with about 70 per cent votes.
Mr Pande said the MMD could not fail to pay the Registrar of Societies the balance of K90 million if it managed to clear K300 million.
Speaking at the same event, Dr Mumba said he regretted the physical attacks by some MMD youths on Maj Kachingwe on Saturday.
MMD vice-president for politic al affairs Michael Kaingu said the party would continue to support Dr Mumba's leadership.
Dr Kaingu said if Maj Kachingwe was aggrieved with the election of Dr Mumba, he should have taken the matter to court earlier.
On the whereabouts of MMD Die Hard youth wing national coordinator Bowman Lusambo following reports that police were looking for him, Dr Kaingu said the youth was free to go anywhere.