Shortly after 3 pm on Saturday, a man in a car drove into the middle of Kraków's Old Town and began shooting at whoever was in range. The Main Market Square is the city's biggest draw for visitors, and it was busy. Horse-drawn carriages were out, as they usually are.
Police say the driver wore military-style fatigues and a bulletproof vest and carried a military-type long gun. Police spokesperson Katarzyna Cisło described a "wild ride" around the square, which explains why the wounded were found in several different spots. A tram driver reported his cab window shattered by gunfire. Two carriage horses were hit as well. Both survived.
Officers caught up with the man a short distance away. Shots were exchanged. He kept firing at police even after he was hit, according to Cisło. He was taken to hospital for surgery.
More weapons and ammunition were found in his car. Police said he acted alone and that the public is not in danger.
Six people died in the square: four women and two men. At a joint press conference, Poland's police chief said three of the dead were Polish and one was a citizen of Britain. Two others had not yet been identified at that point.
Fifteen people were wounded, though some outlets reported 16 as the numbers moved through the evening. Two police officers were among them. Portugal's foreign ministry said a Portuguese woman was in hospital.
British Prime Minister Andy Burnham said he was shocked and saddened by the news.
Authorities describe the attacker as a 24-year-old Polish citizen, though a few outlets gave his age as 25. At a news conference, Interior Minister Marcin Kierwiński said he was fascinated by far-right ideologies and held very radical views. Tusk called the shooting an act of terrorism.
Then came a second blow. Hours after the attack, Tusk told a crisis meeting that the bodies of two women and a man had been found at the suspect's home in Ostrowiec Świętokrzyski, a city north-east of Kraków. There were "strong indications," he said, that they were his immediate family.
Officers used a drone to look inside the house first, because of possible security threats. Agents from the Internal Security Agency were at the scene. If the three deaths are confirmed as part of the same case, the total toll rises to nine.
Officials have not said how those three people died.
Mass shootings are uncommon in Poland. The most recent comparable scare was in mid-October, when three attacks at schools in the Mazovia region over four days left one person dead and several wounded, children among them.
Gun ownership is regulated, but interest in it has been climbing. Roughly 411,000 people hold gun permits in a country of 37 million. It is not yet clear whether the rifle used on Saturday, or the other weapons in the car, were legally held. That question is likely to shape the political debate in the days ahead.
Mayor Łukasz Gibała announced mourning until Wednesday and said the city will stay open to visitors. "The square will belong to us again," he said in a video posted online.
Cardinal Grzegorz Ryś, whose residence stands roughly 80 metres from the square, urged people to stand together. Anyone could have been walking through that square, he said.
Messages of support came from abroad too. Ukrainian President Volodymyr Zelensky sent condolences and said Ukraine stands with Poland. Latvia did the same.
In Warsaw, Mayor Rafał Trzaskowski announced extra security measures, including road barriers on main streets in the Old Town. Kraków receives around 15 million tourists a year, and most of them pass through the Main Square at some point.
Plenty. Investigators have yet to explain how the suspect obtained his weapons, what exactly drove him beyond the ideology officials describe, and how his three relatives died. His condition after surgery and any formal charges have not been announced. The numbers could still change as the investigation continues.
