Neither Mnangagwa nor Nelson Chamisa, the leader of the biggest opposition party, the MDC, attended the meeting but their representatives signed the agreement, which was drafted by the National Peace and Reconciliation Commission.
There are 23 candidates standing for president in the July 30 elections, the first without former President Robert Mugabe since independence in 1980.
The explosion at the end of Mnangagwa's rally in Zimbabwe's second largest city, Bulawayo, on Saturday killed two of the president's aides and was the first serious violence in the current election campaign.
--AP--