Kysylyn

Kysylyn (Кисилин, Kisielin) is a town in Volyn Oblast, Ukraine. Before World War II, it was a part of Wołyń Voivodeship, Poland. Its population is approximately 2,703 people living within a 7 km radius.

World War II
The Ukrainian Insurgent Army, supported by a group of local Ukrainian peasants, committed a mass murder of around 60 to 90 ethnic Poles in the centre of town on July 11, 1943. The Polish citizens who assembled for a Sunday service at a local Catholic church, were killed by a machine gun. The wounded, including children, were murdered with axes and knives. The Kisielin massacre was part of the province–wide massacres of Poles in Volhynia and Galicia, with the estimated 80-100 thousand ethnic Poles from Wołyń killed by the Ukrainian nationalists during World War II. The memory of Kisielin massacre was featured in Agnieszka Arnold's 2003 feature film Oczyszczenie (Cleansing).