Polish gunman with ultranationalist views kills six in Krakow's Main Square

A 25-year-old Polish man drove into Krakow's Main Square on Saturday, firing an automatic weapon at multiple points and killing six people while injuring at least 15 others, authorities said. The attack was described by the defence minister as an "act of terror."

Interior Minister Marcin Kierwiński said the suspect held "very radical" and "ultranationalistic" views and was "fascinated by far-right ideologies."

Prime Minister Donald Tusk announced that the bodies of three close family members of the attacker were found in his home in Ostrowiec Świętokrzyski.

Four women and two men were confirmed dead, including a U.K. citizen; police are still identifying the remaining victims. Thirteen people were reported in serious condition, a figure that may include the gunman, who underwent surgery after being wounded by police.

Police spokesperson Katarzyna Cisło said the attacker wore military-style fatigues, a bulletproof vest and used a long-range military-type gun. Additional weapons and ammunition were recovered from his car. He continued firing at officers even after being shot.

Krakow mayor Łukasz Gibała declared an official mourning period until Wednesday and pledged that the city would stay open to visitors, stating, "The square will belong to us again."

The incident follows a recent spate of violent events in Poland, including school attacks in the Mazovia region earlier this month. Kacper Rekawek, a senior researcher at the International Center for Counterterrorism, noted that the attacker’s gear resembled that of other extreme-right lone actors in Europe and said such attacks have now become successful in Poland.

In response, Warsaw mayor Rafał Trzaskowski announced heightened security measures, including road barriers along main streets in the capital's old town.