Supporters of a new opposition party in Zimbabwe, founded by the country's former vice president, were pelted with stones at a rally.

Witnesses said Saturday people in minivans threw stones at supporters of the Zimbabwe People First party, before speeding off. An Associated Press reporter saw cars with smashed windows. A bleeding man was rushed to a hospital.

The party's leader Joice Mujuru was not at the rally held in the capital Harare.

Jim Kunaka, a former member of President Robert Mugabe's ruling party, ZANU-PF who has joined Mujuru's party, said he identified some of the assailants as his former party members. The ruling party's spokesman could not be reached for comment.

Mujuru was a close ally of Mugabe before she was expelled from the ruling party in 2014.