"Poland grieves with the people of Munich after today’s alleged attack," the Polish foreign ministry said in a social media message.
It expressed "solidarity with the families and loved ones of the injured."
At least 30 people were hurt when a car driven by an Afghan asylum seeker slammed into a crowd in Munich on Thursday in what officials said was probably a deliberate attack, the Reuters news agency reported.
Police detained the 24-year-old driver. They said his motive was unclear.
The suspected attack came hours before international leaders, including Ukrainian President Volodymyr Zelensky and US Vice President J.D. Vance, were due to arrive in the southern German city for the annual Munich Security Conference.
The incident put security back in focus before next week's federal election in Germany, Reuters reported.
In December, six people were killed in an attack on a Christmas market in the eastern Germany city of Magdeburg.
(gs)
Source: IAR, PAP, Reuters