The SPLM has registered with the Political Parties Council, a day ahead of the deadline.

The registration comes a few days after an emergency national convention held in Juba.

The convention incorporated the Arusha Peace Agreement into the party constitution.

Members of the SPLM in Opposition and the former detainees only attended the opening and closing sessions.

The SPLM-IO said it would study the document before it reacts to the amendments while the former detainees accepted the changes.

Party loyalists marched from John Garang Memorial Park today to the office of the political affairs council.

The ruling party was registered in the Sudan in 2009, two years before the independence of South Sudan in 2011.

All the political parties are now required to register under the South Sudan Political Parties Act.