POZNAN, POLAND — The Ukrainian government is urging Polish leaders to punish its farmers who on Feb. 11 at a border checkpoint stopped three trucks carrying inbound Ukraine grain and dumped it onto the highway, Reuters reported.

Polish farmers have been angered by their government’s decision to allow imports of cheap Ukrainian grain, which they say has led to reduced profits. The incident, which occurred near the Yahodyn-Dorohusk checkpoint and was part of an ongoing 30-day strike to protest European Union agricultural policies, drew an angry response from Ukrainian Foreign Minister Dmytro Kuleba.

“The spoiling of Ukrainian grain on the Polish border is unacceptable,” Kuleba wrote on X, formerly known as Twitter. “Any farmer should know how much hard work it takes to produce grain, especially during wartime. For the sake of friendly Ukrainian-Polish relations, the perpetrators must be held to account.”

Ukrainian farmers have faced difficulty in producing and exporting grain since Russia invaded Ukraine on Feb. 22, 2022. It has attempted to export more grain via rail and truck to counter transport difficulties on the Black Sea. Poland has been one of Ukraine’s staunchest allies during the war.