US Secretary of State John Kerry says the United States does not believe that the Zimbabwean election results announced today "represent a credible expression of the will" of its people.
Read more: Mugabe wins Zimbabwe election
Members of Zimbabwe's opposition say they have been targeted by Mugabe supporters following the president's re-election.
President Robert Mugabe's declaration as winner has been met by international concern over the conduct of the African nation's poll.
Robert Mugabe has secured his grip on power in Zimbabwe today after his party ZANU PF won a majority in parliament in Wednesday's election.