Seven people were killed and a child was injured in a munitions explosion in South Sudan's Unity state, the aid group Doctors Without Borders said Tuesday.
The stockpile of unexploded ordnance, leftover from clashes between government forces and rebels last year, was stored in a container in the opposition-held Thar Jath, the ABC News reported.
The container blew up last week on Thursday, probably after locals set fire to the grass nearby to clear land for farming, said Doctors Without Borders.
All seven people killed were men and a 14-year-old old boy was left with wounds all over his body, said the organization.
Doctors Without Borders warned there could be more unexploded munitions in Thar Jath from last year's clashes.
South Sudan has been at war since December 2013 as forces loyal to President Salva Kiir try to put down a rebellion led by his former deputy, Riek Machar.