As the fog lifted, German artillery caught the French guns in the open and silenced them. A German counter-attack routed a French division and the corps was not rallied until the evening. To the north the IV Corps also advanced in fog and encountered German troops dug in near Virton and was forced back also with a division routed. On the southern flank, the VI Corps was pushed back a short distance. In the Fourth Army area, the II Corps on the right flank managed to keep level with the Third Army to the south but was not able to advance further. The Colonial Corps on the left was defeated at the Battle of Rossignol, south of Neufchâteau and had but the 5th Colonial Brigade on the left easily reached Neufchâteau, before it too was repulsed with many casualties. Further north, XII Corps advanced steadily but the XVII Corps beyond was outflanked and the 33rd Division lost most of its artillery. On the northern flank the XI and IX corps were not seriously engaged.