The bodies of Nyadeng Mangol, 25, and her one-year-old daughter only identified as Nyadeng were recovered in a nearby bush by authorities at the refugee camp on Sunday.
The clashes escalated when a group of refugee youths attacked and assaulted a resident from the host community who was grazing in the area, promoting revenge attacks that left seven South Sudanese refugees dead with the eighth dying at Arua hospital.
West Nile Police spokesperson Josephine Angucia says the number of people who got injured from the attacks has risen to nine including one Yasin Ajute, 18, a Madi of Ugandan origin from Madi Okollo district who was initially beaten by a group of refugee boys.
Police says the injured persons are receiving treatment at Arua hospital while others are being treated at Olujobo health centre within the refugee camp. According to Angucia, 28 suspects have since been arrested and are being detained at Arua Central police station. Police and the army have maintained heavy deployment at the refugee camp as investigations continue.
Rhino Camp is Uganda's fourth largest refugee settlement area, with a population of more than 100,000 South Sudanese refugees displaced by the 2013 and 2016 civil wars.