Kamensky reversed the Russian retreat, and he ordered an advance to support the troops on the River Wkra. On the night of 23 and 24 December, Davout's corps forced a crossing of the lower Wkra in the Battle of Czarnowo. After engagements at Bieżuń on 23 December with Bessières and Soldau (Działdowo) on 25 December with Ney, the Prussian corps under L'Estocq was driven north towards Königsberg. Augereau's corps seized a second crossing of the Wkra on the 24th at Kołoząb. Realising the danger, Kamensky ordered a retreat on Ostrołęka. At this time the old field marshal appears to have had a mental breakdown and returned to Grodno. Bennigsen decided to disobey his superior's orders by standing and fighting on 26 December at Pułtusk. He had available the 2nd Division of Lieutenant General Alexander Ivanovich Ostermann-Tolstoy, the 6th Division of Lieutenant General Alexander Karlovich Sedmoratski, part of Lieutenant General Dmitry Golitsyn's 4th Division, and part of Lieutenant General Fabian Gottlieb von Osten-Sacken's 3rd Division. To the north-west, most of the 4th Division commanded by Golitsyn and the 5th Division under Lieutenant General Dmitry Dokhturov fought the Battle of Gołymin on the same day.