Two Belarusian citizens were arrested in conjunction with the artist’s death, but they have since been released, according to Polish officials.
An investigation by Polish services is ongoing.
The case risks rekindling tensions between Poland and its neighbour Russia, which were exacerbated by drone crashes on Polish territory last autumn, which Warsaw blames on Moscow.
Skrepetsky was known for his sometimes provocative caricatures, which targeted prominent Russian political figures – ranging from Putin and Soviet leader Joseph Stalin to opposition figure Alexei Navalny and Chechen ruler Ramzan Kadyrov.
One of his best-known works reinterprets a classical Orthodox icon, depicting Stalin cradling Putin in place of the Mother of God holding the infant Jesus.
Skrepetsky moved to Poland in 2021, saying he feared political persecution in Russia.
In exile, he maintained a contrarian stance, attending Russian opposition events while openly criticising the opposition itself.
Several opponents of the Russian authorities have been victims of attacks abroad, including in the United Kingdom, Germany, and Lithuania.
Moscow has always denied any involvement in these attacks.
