Dar es Salaam, March 6 -- SOUTH SUDAN: The arrest of an army general from South Sudans main opposition is a “grave violation” of the peace deal that ended a five-year civil war, an opposition spokesperson has told the BBC.

Gen Gabriel Duop Lam was arrested earlier this week, along with other senior officials of the Sudan Peoples Liberation Movement in Opposition (SPLM-IO).

The detainees are all allies of Vice-President Riek Machar, whose rift with President Salva Kiir sparked a devastating war in 2013.

On Thursday morning, Machars spokesperson said that the SPLM-IO did not know how their officials were or where they were being held.

“We are doing our best to avoid any escalation to the situation, however we need our ...