The United States said rebel fighters in Chad appeared to be moving towards the capital N’Djamena and ordered non-essential staff to leave, warning of possible violence. A spokesman for the rebel Front for Change and Concord in Chad (FACT) said its fighters had “liberated” the province of Kanem, some 220 km (136 miles) from the capital N’Djamena, but the government denied this. “The authors of these false statements are not even on the ground, but somewhere in Europe,” the government said in a message posted to Facebook. A day earlier the British government urged its citizens to leave Chad because of information that two rebel convoys on the move, one near the town of Faya, some 770 km (478 miles) northeast of N’Djamena, and another by the town of Mao, the provincial capital of Kanem. On S...