The Ukrainians murdered 4 Poles: a gamekeeper and 3 policemen.

source: Żurek Stanisław, „Calendar of the genocide – October 1944”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

The NN gamekeeper at the forest property of Dr. Feiwel Adlersberg in Zatwarnica showed the policemen from the MO Post in Zatwarnica the UPA weapons warehouse in Hulsk. He was fatally wounded during the raid.

source: Żurek Stanisław, „Calendar of the genocide – November 1944”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

source: Marszałek Edward, „Forest history of Bieszczady”; in: State Forest Holding - State Forests — web page: fundacjabieszczadzka.org [accessible: 2021.04.11]

In the village of Zatwarnica, county Lesko in the forest property of Dr. Feiwel Adlersberg, during the raid of militiamen from the Citizens' Militia Police Station in Zatwarnica under the command of Stanisław Śliwa to the UPA gamekeeper warehouse in Hulsko indicated by the UPA gamekeepers, NN gamekeeper was mortally wounded.

source: Żurek Stanisław, „Calendar of the genocide – November 1944”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

source: Orłowski Edward, „Foresters who died during the war and persecution in 1938-1949 in Eastern Lesser Poland and the post-war Rzeszów region”; in: Regional Directorate of State Forests in Krosno — web page: www.krosno.lasy.gov.pl [accessible: 2021.01.29]

„On November 11, 1944, a group of 5 officers from the Zatwarnica MO Post, area of Lesko went to the village of Halskie (Hulskie – S.Ż.), county Lesko, where the UPA gang's weapons warehouse was to be located. After entering the indicated house, they were attacked by a band of UPA, three officers died as a result of the fight and one was seriously wounded. A forester who was a guide for MO” was also killed. Edward Prus: Operation „Wisła”, Wrocław 2006, p. 259, quotes „List of criminal acts committed by UPA gangs in the years 1944 – 1947”, developed in the „C” Department of the Provincial Office of Internal Affairs in Rzeszów.

source: Żurek Stanisław, „Calendar of the genocide – November 1944”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

Fragment of a field report by the OUN clerk of the 'Beskid' district about the murder of 3 Ukrainians in Hulskie by Polish Army soldiers:
„17.3. [1946] The Polish Army in the number of 200 soldiers moved from Wetlina to Suchy Rzeki and Zatwarnica. They burned down all the houses in Zatwarnica, then went along the forest road to Nasiczne, where they burned down the entire village and went to Dwernik. They spent the night there, and the next day they went to Zatwarnica and Hulskie. They shot there: the village administrator, the head of the head and a young boy from Tworylny, who were going to work in Zatwarnica”.

source: „Wisti z terenu za serpeń 1946”; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 26, sh. 309

source: Huk Bogdan with a group of friends, „Murders of the Ukrainian population 1944-1947”; in: portal: Ruthenian apocrypha — web page: www.apokryfruski.org [accessible: 2021.09.30]