Riot police prevented striking doctors and nurses on Tuesday from protesting against Zimbabwe's collapsing healthcare system.

Up to 1,4-million people are at risk of cholera if it continues to spread unchecked across Zimbabwe, Médecins sans Frontières said on Tuesday.

The number of deaths from cholera in the central Mozambican rural district of Guru has risen to 53, it was reported on Wednesday.

About 40 people ahave died from cholera in Mozambique's Manica province, amd nine people have died from an outbreak in Harare.

Cholera has infected almost 6 000 south Sudanese and killed at least 44 this year, with more than half dying within the past four weeks, officials from the South Sudanese Health Ministry said on Wednesday.

About 12 000 infections have been reported in the province, but, with just 52 deaths, health authorities say their efforts have been successful.