
"Zulfiqar Mirza should not have used such foul and inappropriate language," Memon said as he referred to the May 3 incident in which Mirza stormed a police station in Badin and manhandled officials.
Read: Splintering the party: Zulfiqar Mirza eyes new PPP faction
He further said that Mirza was "challenging the writ of court and he has behaved inappropriately."
The address comes a day after a Pakistan Peoples Party (PPP) press conference during which Mirza's mental stability was brought into question.
"He should be ashamed of his statements and should not have used foul and indecent language," Memon continued.
Read: Zulfiqar Mirza storms police station, manhandles officials in Badin
"Mirza was responsible for defaming the PPP," Memon said urging media to restrict the broadcast of conferences in which party leaders and supporters "assassinated the character of others."
Mirza on May 3 reportedly stormed the Model police station along with his supporters, abused the officials and damaged furniture for filing a case against Nadeem Mughal.
An anti-terrorism court on Saturday approved his bail until May 19 in three cases, for the sum of Rs100,000.
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