Sudanese jet fighters dropped three bombs in civilian areas of Guppap, Maban County in Upper Nile state on Monday.
Army spokesperson Colonel Philip Aguer Panyang told CRN on Wednesday through a telephone call that the bombing was the continuation of aggressions that started in February.There were no casualties reported
He said SPLA authorities have been briefing the public on the acts of aggression at the border areas.
Col Aguer said SAF is building up and have encroached into Renk County moving close to a SPLA base in Gongbar.
He described the encroachment as an act of provocation to draw South Sudan into all out war with the Sudan.
Col Aguer said the army was in a defensive position, ready to act any time in self defence if SAF penetrated deeper into Renk area.
Sudan has signed nine cooperation agreements in September 27, 2012, with South Sudan; but implementation was placed on hold while military aggression continues.