Diplomats from the United Nations Security Council are in Chad, where they plan to ask President Idriss Deby to make peace with neighboring Sudan.
France's U.N. ambassador, Jean-Maurice Ripert, says the diplomats will plead for reconciliation as they did while in Sudan's capital, Khartoum, on Thursday.
The diplomats also are scheduled to visit a displaced persons' camp in eastern Chad and meet with aid workers and European peacekeepers.
Chad and Sudan have signed several peace agreements in recent years, but relations have remained hostile. The two governments accuse each other of supporting rebel movements on each other's territory.
Ambassador Ripert says the diplomats will tell Chadian authorities that this is not the time to support rebel groups, but to talk and to look toward cooperation.
The Security Council diplomats are on a six-nation tour of Africa aimed at promoting peace on the continent.
Prior to their Chad visit, they held talks aimed at preventing a new north-south civil war in Sudan, and reconciling the government and Islamists in Somalia.
Some information for this report was provided by AP and Reuters.