One of Ivory Coast's three rebel groups has threatened to return to war if it is not given crucial posts in the government.
Loyalist soldiers say the Paris deal gives the rebels too much power
The head of the Ivorian Popular Movement of the Great West (Mpigo) said the defence and interior ministries had been allocated to the rebels under an accord signed in Paris in January.
"If they're taken away from us, we will tell the international community that civil war will break out," Felix Doh said.
The threat came as the Ivorian Prime Minister, Seydou Diarra, held talks in Paris with the leader of another, larger rebel group, the Ivory Coast Patriotic Movement (MPCI).
Mr Diarra arrived back in Abidjan on Sunday to brief President Laurent Gbagbo on the talks, which are reported to have ended without agreement.
Warning to MPCI
The issue of the cabinet posts has been a stumbling block since the outlines of a power-sharing scheme were agreed at talks in France in January to end the country's smouldering civil war.
IVORY COAST CONFLICT
More than a million displaced
3,000 French peacekeepers
Nation divided in two
Power sharing deal still to work
The deal, brokered by France, aims to end five months of fighting between government and rebel forces in which hundreds of people have lost their lives.
However, it was bitterly criticised by many supporters of President Laurent Gbagbo, who said too much power was being given to rebels.
The Ivorian army softened its hostility to the peace deal earlier in the week, saying it did not object to rebels joining the government, as long as they did not control the ministries of defence and interior.
But the Mpigo - one of two western rebel groups - warned that if President Gbagbo "tries to move even one comma of the deal there will be war".
"We are ready to die," Felix Doh said.
"There will be no compromises, we have already made too many concessions."
He also had a warning for MPCI leader, Guillaume Soro, whose group controls northern Ivory Coast and who has been holding talks in Paris:
"There is nothing to negotiate and if Guillaume Soro gives way he can stay in Paris in exile."