Two Ugandan traders were kidnapped and killed early this week in the South Sudan capital Juba.
The deceased businessmen were identified as 48-year-old Mayende Kamaadi and Ahemed Ssebagala.
Daily Monitor reports that the deceased were part of the group of four Ugandans ambushed last Sunday evening outside the Ugandan-South Sudan border by armed people believed to be rebels who demanded for ransom before their release.
One of the captives identified as Peter Tusiime, a driver managed to escape moments later, while another managed to escape on Wednesday night.
The kidnappers initially wanted a ransom of about Sh22m ($6,000) for each captive but kept hiking the amount.
The embassy officials and local authorities advised against paying of the ransom indicating that the matter would be resolved.
The leaders of the Ugandan Community in South Sudan said they had been alerted to four other Ugandans reportedly kidnapped on Thursday.