The body is calling on all parties to immediately adhere to the permanent ceasefire called for in the August 2015 peace deal.
According to UNMISS, the missionâ€™s temporary operating base in Leer town in the former Unity State, came under small-arms attack from the direction of the nearby government-held town.
The Council members, however, expressed appreciation for the peacekeepersâ€™ quick defensive action which secured the safety of all of the internally displaced people who had sought UN protection .
The U.N human rights chief had earlier, also appealed to the Government of South Sudan to halt any further military offensive towards Aburoc in the Upper Nile region.
But South Sudan has denied that its soldiers attacked the United Nations peacekeeping base in Leer, a town in former Unity state.
The number of people killed in Fridayâ€™s attack on the road between South Sudan capital Juba and the north-eastern town of Bor has risen to 30.
The attack occured on a part of the Juba-Bor road, which has become almost impassable as a result of the rainy season and its poor condition.