 The Saxons were prepared for a long siege, with substantial supplies including tents.On 3 September, Bernhard's scouts alerted him to the presence nearby of a major Slav force, who were planning to launch a night attack on the Saxons.After further reconnoitering of the Slav force to confirm the accuracy of the initial report, Bernhard raised the alertness of his camp that night to prepare for the expected Slavic attack.