The UN Security Council has unanimously condemned the rebel attacks in Chad. It urged world support for the embattled government as the insurgents threatened a new assault on the capital.
The decision came as thousands of civilians fled N'Djamena and rebels threatened a fresh offensive to oust President Idriss Deby.
Earlier Chadian government said it has quashed a rebellion aimed at ousting Mr Deby.
A rebel spokesman said its forces had made a tactical withdrawal from the capital to meet up with reinforcements coming from the east with fresh ammunition and supplies.
The capital was rocked by tank battles in the streets and helicopter air strikes over the weekend.
Anti-tank and automatic weapons fire was heard around the presidential palace, where President Deby has been holed up since Friday. Bodies littered the streets and aid groups reported hundreds of wounded from the fighting.
A government minister has accused Sudan of being behind the rebel offensive in a bid to install its own Sudan-friendly administration.
French troops are patrolling zones around assembly points where hundreds of foreigners have gathered as they wait to leave the country.
The French army has so far flown 580 foreigners out of N’Djamena to the Gabon capital Libreville, with more to be airlifted today.
54 Irish troops, who are part of an EU peace mission that has been postponed, remain on standby, with Wednesday the next proposed date for deployment.
An Army spokesman has said that the eight members of the defence forces currently in Chad are safe and well.
Meanwhile, the UN's World Food Program warned that the fighting in Chad risked disrupting food aid to hundreds of thousands of Sudanese refugees and displaced Chadians.
