The Office of the President says the international community should develop a mechanism to determine who is violating the ceasefire the government and the SPLM in Opposition declared last week.

Clashes have been reported in Upper Nile, Jonglei and Unity State since the ceasefire came into force on Saturday.

The US government has threatened further UN sanctions if both sides fail to fully implement the peace agreement.

Six military generals from the two warring parties have already been sanctioned by the UN Security Council for their role in the conflict.

Presidential press secretary Ateny Wek Ateny says it is not enough to always refer to both sides on the violations.

“The proper role that the international community should play on this is to device a very strong mechanism that will determine who, at what time and where is violating the cease fire,” Mr Ateny says.

“It will not be enough to say both sides all the times and I don’t think there is any reason for anybody to be doing this,” he told Eye Radio.

President Salva Kiir and Dr Riek Machar signed the peace agreement last month and followed it with declaration of a permanent ceasefire last week.

But since then, the ceasefire has failed to hold, with both sides accusing each other of the violations.