Aid workers have warned that there is an increased risk of disease outbreaks at the outdoor camps housing quake survivors.

Extreme heat and heavy rain in Myanmar could cause disease outbreaks among earthquake survivors camping in the open, global aid bodies warned on Thursday.

Conditions could get even tougher for the huge relief effort after weather officials warned unseasonal rain could threaten the areas hardest-hit by the quake, such as Mandalay, Sagaing and the capital Naypyidaw.