The Habsburg army was besieging Temesvar, but when the Ottoman army crossed the Danube the siege was lifted and both armies met near the Bega River on August 26. During the battle, the left wing of the Imperial army took heavy casualties, in contrast to the centre and the right wing. Eventually the Ottomans emerged victorious. The Imperial commander Heissler of Heitersheim was killed in the battle, along with 3,000-6,000 Habsburg soldiers. The Turks lost 4,000 men.