The UPA murdered 13 Poles and one Jewish woman who was hidden.

source: Żurek Stanisław, „Calendar of the genocide – December 1945 and 1945”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

Extract from the OUN statistical study of October 27, 1946, translated into Polish by the UB, prepared by NN 'Strich' on Ukrainian human losses in area ('kushch') no. II, region III in the 'Chłodny Jar' area:
„'Piątkowa — 57'”.

source: „Region No. II (kushch) report of the losses of Ukrainian citizens for the period from October 1, 1944 to October 25, 1946”; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 52, sh. 320

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]

In Bachów, Horta, Jabłonica Ruska, Jawornik, Kotów, Obarzyn, Piątkowa, Poręby, Siedliska, Sufczyn, Ulucz, Zahutyn villages in Przemyśl county murders committed by the Ukrainians on the Polish population took place

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

The UPA murdered 4 Poles, including a married couple.

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

On February 16, the joined groups of RyszardKotwicki „Blind” from Borownica and Grodecki, with a total of 150–200 people, attacked the villages of Jawornik Ruski, Rohatyn, Piątkową and the hamlets of Poruty and Zahuty.

source: Pisuliński Jan, „The Polish-Ukrainian conflict in the Przemyśl poviat in winter and spring 1945 and the participation of Roman Kisiel 'Vulture' group in it” — web page: www.polska1918-89.pl [accessible: 2021.02.04]

„On February 17, 1945, the militia from Borownica was in Piątkowo. They robbed the inhabitants, burned down 2 houses and 4 barns, and killed 23 people. One of them took out her eyes, cut off her tongue, cut off her ears and made her dance on the road, then they shot her”."

source: „Wisti z terenu”, b.d.; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 2, sh. 287

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]

Account of Eustachia Brehin (born in 1936 in Piątkowska) about the murder of the inhabitants of this village in February 1945:
„I was 9 years old during the resettlement. I remember the terrible experiences when Poles killed us Ukrainians, murdered us for nothing. Polish bandits attacked Ukrainian villages, took everything that could fall into their hands, leaving people naked and barefoot. In the summer we spent the night in the forests, and when winter came, it was impossible to withstand the frost in the forest. In February 1945, during an attack by a Polish gang on a village (they murdered 32 innocent people), it seemed that they would finish everyone off. In the summer, they all fled to the forest as much as possible, and the gang raged in the village. They burned half of the village, the Polish army came and forced the gang to abandon it”.

source: Sływka J. (ed,), „Deportaciji. Zachidni zemli Ukrajiny kincia 30—ch – poczatku 50—ch rr. Dokumenty. Materiały. Spohady.”, in: Lviv 2002, vol. 3: „Memoirs”, p. 103

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]

Excerpt from a field report by an OUN clerk about the murders by MO members and a gang from the Polish village of 26 Ukrainians in Piątkowa:
„On February 24, 1945, a Polish gang from Bachórzec, numbering 50 people, attacked the village of Piątkowa (Obaracz), killing 3 Ukrainians”.

source: „Wisti z terenu”, b.d.; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 2, sh. 287

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]

The Ukrainians murdered Sigismud Kirzyk.

source: Żurek Stanisław, „Calendar of the genocide – April 1945”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

Fragment of a field report by an unknown OUN reporter about the murder by armed men from the Polish village of Tarnawka on 2 Ukrainians from Piątkowa:
„On April 17, 1945, at 3 p.m  […] 5 armed Poles from Tarnawka attacked 2 Ukrainian farmers from Piątkowa, who left to plow in the field. These Poles took both men, led them to the forest and shot them there, they were:
Kril Mychajło, born on in 1889,
Polaczok PAwło, born on in 1870”.

source: „Wisti z terenu”, b.d.; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 2, sh. 287

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]

Fragment of the indictment of Poles guilty of murdering Ukrainians prepared by 'Bohdan', the member of the administration of District I of the Zakerzonya Region 'Sokoł':
„On August 7, 1945, 7 armed men dressed in Polish and German uniforms arrived from Dylągowa. They murdered Supa Teodora, 45”.

source: „Akt obwynuwaczennia polakiw pryczetnych do znyszczennia ukrajinciw”; in: Wiatrowycz W. (ed,), „Polśko-ukrajinśki stosunky w 1942—1947 rr. u dokumentach OUN ta UPA”, in: Lviv 2011, vol. 2, p. 892, in: orig. Ukrainian

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]

Fragment of the field report of Vasyl Capiak 'Potap', the SB‑OUN clerk of the 'Chłodny Jar' district, about the murder of Polish Army soldiers on 5 Ukrainians from Piątkowo:
„On September 20, 1946, 150 soldiers of the Polish Armed Forces arrived from Tarnawka to Piątkowa. Having robbed the inhabitants, they went to Żohatyn, and the two soldiers stayed in the village. At that time, the 'Korcz' fighter entered the village and encountered a Polish Army soldier in front of his house. 'Korcz' asked him who he was and the password. In response he heard: 'Swoj'. 'Korcz' unleashed a series from PPSz machine gun and killed the soldier on the spot. The second Pole ran out of the house and alerted the departing army. Having learned about the event, the Polish Army raided the area, and when they found no one, they murdered 5 people, took 2 horses and burned 23 farm buildings  […]
Stopover, October 19, 1946 'Potap'”

source: „Wisti z terenu za misiać wereseń 1946 roku”; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 26, sh. 55

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]

[The UPA] kidnapped 4 Poles: 2 women, including one (27‑year‑old Julia Surowiec) with 2 young children who went missing without a trace. Their fate was probably known to the local parish priest of the Greek Catholic parish, Fr. Yuriy Savchuk, who was the chaplain of the UPA 'Burlak' sotnya.

source: Żurek Stanisław, „Calendar of the genocide – December 1946 and in 1946”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.02.28]