On September 21, the Swedes approached Nowy Dwor. Polish camp was located on a 30-meter hill, located at the confluence of the Vistula and Bugonarew. Swedish troops quickly captured Nowy Dwor and began construction of a bridge. Their commandant, Gustaf Otto Stenbock was well aware of the fact that in previous battles, the Polish szlachta of the levée en masse had capitulated to the Swedes without fighting. Therefore, on September 28, Stenbock urged the Poles to capitulate, but their offer was rejected. An exchange of fire began, in which Swedish artillery had an advantage. Covered by the cannons, Swedish reiters crossed the Narew, finishing construction of the bridge, and digging trenches, which protected the river crossing.