Zimbabwe President Emmerson Mnangagwa on Saturday survived an apparent bomb attack in the city of Bulawayo.
Video footage from White City Stadium appears to show an explosion happening close to Mr Mnangagwa as he was leaving the stage having addressed supporters.
He was not hurt, his spokesman said. But senior officials are among those injured, Zimbabwe media say.
President Mnangagwa came into power last November, ousting his former mentor Robert Mugabe.
The president was in Bulawayo, Zimbabwe’s second city, to campaign for his Zanu-PF party ahead of nationwide elections taking place on 30 July.
Presidential spokesman George Charamba issued a statement recalling: “There have been multiple attempts on the president’s life over the past five years.”
The Zimbabwe Herald newspaper reported that Vice-President Kembo Mohadi had suffered leg injuries in the bomb blast, but there is no confirmation.
The paper described the explosion as an assassination attempt.
Other senior officials are also said to have been injured, as well as some of their bodyguards.