Former Polish prime minister Jarosław Kaczyński accused groups in western Ukraine of desecrating remains and stealing WWII-era victims’ jewelry. The leader of the national-conservative Law and Justice (PiS) wrote on X on 14 August 2026 that his party would demand Polish government intervention.

Kaczyński’s claim comes amid growing anti-Ukrainian sentiment in Poland and a dispute with Kyiv over how Polish wartime victims are remembered. However, Kaczyński’s X post named no location and provided no public evidence, while authorized Polish-Ukrainian teams continue exhuming and reburying Polish victims.

“Illegal excavations at the sites of former Polish villages in Eastern Galicia are turning out to be real,” Kaczyński wrote, referring to a historical region now largely in western Ukraine.

He called the alleged looters “black diggers,” a term for people who dig through burials or archaeological sites for valuables. He said they were pilfering the graves of Poles killed in the World War II-era Volhynia massacres and alleged that local Ukrainian officials were allowing it.

Kaczyński said PiS would appeal to Poland’s state authorities, including the Foreign Ministry, and demand “explanations and a response.”

The evidence described by PiS has not been made public. Onet reported that it was unclear which incidents he meant and that neither government had responded at the time. PiS spokesperson Rafał Bochenek later told the publication Interia that citizens had sent photographs allegedly showing damaged graves and listings for excavated objects. Interia published neither.

Polish-Ukrainian teams continue authorized exhumations

Meanwhile, Poland’s Institute of National Remembrance (IPN), the country's state historical institute, said Ukraine authorized its latest excavations at Ostrówki and Wola Ostrowiecka in Volyn.

From 13 July to 7 August, Polish and Ukrainian specialists recovered 55 victims, including 26 children. They also secured more than 300 personal items and pieces of clothing. The remains are due to be buried at Ostrówki cemetery on 30 August.

The excavation followed a wider thaw. Ukraine lifted its moratorium on Polish searches, while joint teams exhumed and reburied 42 people at Puźniki in 2025. Both countries have exchanged lists of sites for further searches.

Historical disputes deepen the Polish-Ukrainian rift

Relations between Kyiv and Warsaw worsened after Ukraine gave a military unit the honorary title “Heroes of the Ukrainian Insurgent Army (UPA)."

The UPA fought for Ukrainian independence but is held responsible in Poland for the World War II-era massacres of Polish civilians. Polish President Karol Nawrocki later stripped President Volodymyr Zelenskyy of the Order of the White Eagle, Poland’s highest state honor.

Violence is also rising on the Polish streets. Reports of suspected hate crimes against Ukrainians in Poland rose by more than 30% in the first half of 2026, even as anti-xenophobic voices became more visible online. Kaczyński’s claim adds an unverified criminal allegation to the dispute.