Polish Prime Minister Donald Tusk heads to the city after four women and two men are killed and more than a dozen people injured

Tom Rose, the US ambassador to Poland, wrote on X:

We are just learning details of the horrific mass shooting in Kraków, a savage and murderous attack that’s shattered the peace of Poland.

America stands with Poland at this dark hour as Poland stands with her beloved citizens of Kraków.

A terrible tragedy in Kraków’s Main Market Square.

I share the grief of the families and loved ones of the victims of this unimaginable tragedy. The perpetrator was injured and detained.