zimbabwe military action takeover government mean target criminals bbc report wednesday cite country national broadcaster military read statement zbc say president robert mugabe safe bbc report zimbabwe 's envoy south africa isaac moyo also dismiss talk coup say government `` intact `` bbc say bbc.in/2ix3kls soldier deploy across capital harare seize state broadcaster wednesday 93-year-old mugabe rule zanu-pf party accuse head military treason prompt frenzied speculation coup zimbabwe military say take government bbc