The local prosecutor's office in Poznań, western Poland, confirmed on Tuesday that the probe concerns an attack on civilian life and health.
The attack occurred on 19 November 2025, when a residential building in Ternopil collapsed after being struck by a Russian missile.
According to Ukrainian officials, it killed at least 34 people, including six children. Among the victims was a seven-year-old Polish girl.
"The District Prosecutor in Poznań has initiated an investigation into the killing of a minor and violations of international law," said Łukasz Wawrzyniak, spokesperson for the Poznań prosecutor’s office.
Ukrainian authorities are conducting a parallel inquiry, and Polish prosecutors have requested assistance from the Ukrainian embassy to obtain documents related to the case.
Deliberate attacks on civilians carry a sentence of at least 12 years in prison, or life imprisonment, under Polish law.
(ał)
Source: PAP