The demonstrators were denied entry into the venue at Marymount Teachers College by armed police.
They then tried to block Madiro from leaving the premises, saying he should address them.
Zanu PF Manicaland provincial spokesperson Oliver Mandipaka confirmed the meeting.
Madiro left the college in a huff before riot police pounced on the demonstrators.
NewsDay was denied entry into the venue, with only reporters from the public media being allowed.
Tempers flared after Mutare district co-ordinating committee (DCC) secretary for youth affairs, Danmore Mambondiyani, reportedly told Madiro to address members outside the college.
Mambondiyani also confirmed the skirmishes.
“Yes, the violence happened and we are now being taken to Mutare Central Police Station along with three other members,” he said.
Among some of the people, who were assaulted by the police, was Zanu PF Manicaland committee member Guy Mutasa.
Zanu PF Manicaland women’s league boss Happiness Nyakuedzwa sought refuge in the kitchen of a nearby fuel service station.
Madiro is being accused of imposing candidates ahead of the Zanu PF provincial elections likely to be held at the end of the year.
He is being challenged by Makoni DCC chairperson Albert Nyakuedzwa and Chipinge South MP Enock Porusingazi.
Nyanga North MP Chido Sanyatwe is tipped to win the provincial women’s leadership position.
In September, Zanu PF postponed the polls following an outbreak of violence.Post published in: Featured