Nine supporters of Zimbabwe Prime Minister Morgan Tsvangirai were injured during an attack Wednesday by suspected activists from veteran President Robert Mugabe's party, a party spokesman said."I can confirm, I just received news of the incident," Movement for Democratic Change (MDC) spokesman Douglas Mwonzora told AFP.A party source said members were pasting campaign posters in Harare for their candidate Gift Chimanikire ahead of crucial general elections later this month when rival youth from Mugabe's ZANU-PF attacked them."They are currently receiving treatment at a private hospital but it's not yet confirmed whether they have been admitted or not," the source said.