Russian artist Robert ⁠Kuzovkov, known as Seymon Skrepetsky, was gunned down Monday in Biała Podlaska, in eastern Poland. Two Belarusian nationals have been detained, though not yet charged, reports ArtReview, which adds that one was arrested close to the Belarusian consulate. The victim was found with five bullet wounds, reports UK’s Telegraph.

An artist and performer, Skrepetsky gained notice with his cutting portraits of Russian president Vladimir Putin, Belarusian president Alexander Lukashenko, Chechen leader Ramzan Kadyrov, and a conservative Moscow bishop, Patriarch Kirill. Ukrainian authorities had been targets for his criticism, notes the Telegraph, as had Russian opposition figures such as Alexei Navalny and his wife, Yulia Navalnaya, as well as Maxim Katz, whose YouTube account criticizing the Russian government has nearly 2.5 million subscribers.