South Sudan army on Saturday said that 10 of its soldiers were killed and 50 others were still missing when a unit of the army mistakenly bombed a small boat which was carrying southern Sudanese soldiers at Upper Nile area, Xinhua reported.
"The Sudan people's Liberation Army hired a small boat to transport the soldiers at Upper Nile area. The boat sailed at night and was obstructed by an army unit which tried to stop it. When the boat did not stop, fire was opened on it," Philip Aguer, spokesman for South Sudan's army, told Xinhua correspondent in Khartoum by phone.
"Due to the intensive shooting, the boat drowned. Bodies of the 10 soldiers have been lifted and another 50 soldiers are still missing. Rescue teams are still looking for survivors," he added.
Aguer said the army opened an investigation to know the circumstances behind the incident.