The former political detainees have urged the government and the SPLM in Opposition to urgently resolve the disagreement over cantonment sites.

The opposition says it has forces in the former Western Bahr al-Ghazal and Western Equatoria states and wants them to be given cantonment sites under the peace agreement.

But the government says the IO did not declare during the negotiations that it had forces in the two areas and argues that they are not covered by the deal.

The former detainees say sporadic clashes continue in some parts of the former states.

In a statement, the group says the government and the SPLM in Opposition should resolve the disagreement over cantonment sites through the mechanisms under the Joint Monitoring and Evaluation Commission.

They appeal to President Salva Kiir to employ the approach of a peace agreement signed in Western Equatoria over the weekend to bring in other armed groups in the Bahr al-Ghazal and Equatoria regions.

They say this approach should include those using the Sudan as a base to launch attacks in South Sudan.

The former detainees also say the permanent ceasefire must cover all groups that have taken up arms, whether they belong to the IO or not.

The statement follows a claim by the SPLM in Opposition that government troops attacked their bases in the former Western Bahr al-Ghazal and Upper Nile states yesterday.

The SPLA said the IO had not forces in the Bahr al-Ghazal region and said it only responds in defense to attacks by what they call militias in the Upper Nile region.