United Democratic Salvation Front or UDSF Chairperson on Tuesday issued a statement suspending Martin Toko Moyi and Majok Mading Dier from the party indefinitely.
Joseph Malual Dong accused Martin Toko of declaring himself illegally as the leader of the party and leading it for more than three years when he was in Khartoum, Sudan and London, UK, Radio Bakhita reported.
He said the move taken by the suspended members was against the constitution of the party.
Mr Malual ruled out that the two members would not represent UDSF in any entity because they lost their legitimate rights and privileges in the party.
The statement said the party council comprising of 18 members made the decision in December last year and put Joseph Malual Dong to continue heading it.