Nearly 500 000 people in the DR Congo have been left without clean drinking water after a volcano erupted, the charity Médecins Sans Frontières (MSF) has warned.
Cholera is endemic
It says because cholera is endemic and poses a great threat there is an urgent need to provide people in the eastern city of Goma with safe drinking water.
A reservoir and pipes were damaged when Mount Nyiragongo erupted on 22 May. Hundreds of thousands of people are still unable to return to their homes.