Cavalry moving forward in the center of the German advance on the 3d of May, 1915, got within two kilometers of Mitau, going beyond Grünhof and capturing 2,000 Russians. At Skaisgiry on the day before 1,000 prisoners had been taken, and Janischki and Shagory had been occupied far beyond the Libau-Dunaburg railway. By this time Russian reenforcements were arriving at Mitau in huge numbers.