Police sealed off roads around the election results centre on Friday morning, and members of the public were being stopped for questioning, a Reuters reporter in the capital Harare said.
However, results announced so far by the Zimbabwe Electoral Commission showed ZANU-PF winning 38 parliamentary constituencies and the main opposition party Citizens Coalition for Change (CCC) winning 32, out of a total of 210 single-member constituencies.
The early results showed ZANU-PF retaining its rural base, while the CCC captured the urban vote, as has been the case in previous elections.
In the highest-profile loss yet for the ruling party, the electoral commission said on Friday that Finance Minister Mthuli Ncube had lost his parliamentary contest to a CCC challenger.
Mnangagwa took over from longtime strongman Robert Mugabe after a 2017 coup and won a disputed election in 2018.
Persons:
Emmerson Mnangagwa's, Nelson Chamisa, Patrick Chinamasa, Mthuli Ncube, PF's Chinamasa, Mnangagwa, Robert Mugabe, Nelson Banya, Bhargav Acharya, Nellie Peyton, Alexander Winning
Organizations:
REUTERS, Philimon, Rights, Emmerson Mnangagwa's ZANU, World Bank, International Monetary Fund, Police, ZANU, National Assembly, Commission, Coalition, PF, CCC, Thomson
Locations:
Harare, Zimbabwe, Philimon Bulawayo, Rights HARARE