Monitors say skirmishes in South Sudan are undermining the cease-fire.

On Monday, the UN peacekeeping mission in South Sudan (Unmiss) reported that at least 72 civilians were slain in Leer County, Unity State, including those who were burned alive and decapitated.

Monitors say skirmishes in South Sudan are undermining the cease-fire.

According to observers in the country, recent battles between competitors in northern South Sudan "continue to undermine a permanent ceasefire."

In the last four months, fighting has erupted in the oil-producing states of Unity and Upper Nile.

According to the mining minister, a deal signed this month between the government and opposition organizations on the sharing of important roles in the army and security forces has so far failed to quell the conflict.

"The situation has not improved, and the sides are still fighting." During a meeting in the capital, Juba, Maj Gen Martin Gama Abucha informed the monitors, "Investigations are required."

"Insecurity and human rights violations have continued since March 21," he added.

On Monday, the UN peacekeeping mission in South Sudan (Unmiss) reported that at least 72 civilians were slain in Leer County, Unity State, including those who were burned alive and decapitated.