Thousands of people are fleeing from the rebel-held town of Bentiu in South Sudan ahead of an expected assault by government forces. From Bentiu, Alastair Leithead. Along every road, people are on the move. ____________________________Much of the fighting has been well away from the rebel-held city, but the frontline suddenly appears to be collapsing into the town. Troops, heavy weapons and at least one tank were seen withdrawing and there were reports that government troops were within 25km of Bentiu compared to 40 at the start of the day. 因担忧南苏丹军队可能会对叛军掌控的班图镇发生进攻,数千人从那里逃离.阿拉斯泰尔`莱特黑德自班图报道. 政府军正逼近班图镇的同时,几乎所有向南出逃的路上都有人潮涌动._____________________________至今为止,多数战争都离叛军控制的城市很远,但仿佛一夜之间班图镇已成为战争前沿.人们看到军队,重武器以及至少一辆坦克都在撤退途中.有报道说,早上还距离班图镇40公里的政府军,现已在25公里之内.