Vlad Ţepeş is also believed to have tortured and impaled some of the Turkish forces. It was reported that an invading Ottoman army turned back when they saw thousands of rotting corpses impaled on the banks of the river Danube. In 1462, Mehmed II returned to Constantinople after being sickened by the sight of 20,000 impaled corpses outside of Vlad's capital of Târgovişte. Many of the victims were Turkish prisoners of war.