Nairobi, March 17 -- Doubts among some hold-out armed groups in South Sudan is threatening the start of peace talks to be mediated by Kenya President William Ruto in Nairobi.

A section of the hold-out groups, named so for refusing to sign the 2018 peace deal, is demanding the talks to be returned to Rome to first decide on whether all the parties can trust President.

The Society of Sant Egidio in Rome had led the talks between the government and those armed groups until last year. Later, President Ruto accepted to mediate what could be an addendum to the 2018 peace deal between the ruling South Sudan People's Liberation Movement (SPLM) under President Salva Kiir and several armed groups.

But Emmanuel Ajawin, who is also chairperson of ...