A strike by the Sudanese air force killed a seven-year old boy on Thursday in Nuba Mountains.
SPLM-North spokesperson Arnu Ngattulu Lodi said the Antonov dropped a number of bombs over three villages.Farah Ahmed Tutu was killed in Werne Village of Talodi County.
Kao and Nyaro villages of Abu Jebahah County were also targeted and ten sheep were killed.
On Saturday, Antonovs dropped bombs over in Mandi, Angarto and Timbera villages in Heiban County.
Mr Ngattulu said those bombs killed livestock and destroyed farms, without detailing.