Survivors of Haiti's earthquake are facing outbreaks of diarrhoea, measles and tetanus, according to the World Health Organisation.

The WHO says medical teams have been reporting a growing number of cases of the diseases over the past few days. Cases have also been reported in the resettlement camps, where many of those who have lost their homes are now sheltering. UN agencies and the Haitian government are planning to launch a vaccination campaign next week. The authorities are also warning of soaring crime after 7,000 inmates escaped from prison on the day of the quake. The country's police chief, Mario Andresol, says there has been a growing number of violent assaults and rape cases.