At least six people were killed and 15 wounded after a gunman opened fire in a busy market square in Krakow, Poland's second-largest city, on Saturday, authorities said.The perpetrator targeted random people while driving into the Main Square, a major tourist destination in Krakow's city centre. Police officers were also among the wounded.The shooter is a Polish national, according to police, as reported by local news outlet Onet."The man had no identification documents with him. The police were able to establish his identity through operational work,” the website quoted a police officer as saying.Gunman shot during exchange of fire with policeThe gunman was shot and wounded during an exchange of fire with officers a short distance from the site of the initial shooting.Katarzyna Cisło, a Krakow Police spokesperson, told local broadcaster TVN24 that the perpetrator was wearing military-style fatigues and carrying a military-type long gun.Cisło added that the man acted alone and that the public was safe. Mass shootings are rare in Poland.Polish leaders, US ambassador reactPolish Prime Minister Donald Tusk wrote on X that police were investigating the attack. President Karol Nawrocki expressed solidarity with the victims, the injured and their families.Tom Rose, the US ambassador to Poland, described the incident as a "savage and murderous attack."“We are just learning details of the horrific mass shooting in Krakow, 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 Krakow.”Krakow's Main Market Square a major tourist destinationAround 15 million tourists visit Krakow annually, with most passing through the Main Square.Krakow is located roughly 250 kilometres (155 miles) from Warsaw, Poland's capital and largest city.(With agency inputs)You use AI every day. Now get your AI Quotient. Take the AIQ test.