At least seven people were killed and 20 injured in an attack on a hospital and market in South Sudan on Saturday, a medical charity has said, as worries mount that the country could return to all out civil war.

The aerial bombing on Saturday in South Sudan killed at least seven and caused significant damage to the hospital's pharmacy, destroying all medical supplies.

Médecins Sans Frontières (MSF) strongly condemns the deliberate bombing of its hospital in Old Fangak, South Sudan. The attack began at around 4:30am when two helicopter gunships first dropped a bomb on the MSF pharmacy,