Mugabe a threat to unity, says US

The United States says the power-sharing deal in Zimbabwe will not work with Robert Mugabe as president.

The US would not reverse sanctions policy while Mr Mugabe remained in power as he had "lost touch with reality", a senior US official said.

As well as suffering economic collapse, Zimbabwe is suffering from a cholera epidemic charities say is critical.

Talks on a power-sharing deal with the opposition following disputed elections in March have been stalled.

The opposition MDC accuse Mr Mugabe of breaking the deal.