A 25-year-old Polish man, described as ultra-nationalist and believed to be inspired by far-right ideology, has killed six people and injured more than a dozen in a shooting attack in the busy centre of Krakow, Poland's second-largest city. The attack occurred on Saturday afternoon when the gunman drove onto the popular Main Market Square and fired randomly at people.

Four women and two men were killed in the attack. Of the deceased, three were Polish nationals, one was British, and the identities of the remaining two are yet to be confirmed. The injured include five foreign nationals from Austria, Germany, Portugal, Russia, and Britain, as well as two Polish police officers, one of whom is in critical condition. The rampage, which lasted approximately three minutes, saw the attacker use military-style weapons and attire.

Following the attack, counter-terrorism police searched the suspect's home in Ostrowiec Świętokrzyski, approximately 125 miles (200km) away, where they discovered three additional bodies. Polish Prime Minister Donald Tusk stated that there are strong indications these three individuals—two women and one man—were the suspect's immediate family members.

Prime Minister Tusk described the incident as a "cruel attack on people's lives" and a drastic case of terrorism not previously seen in Poland. He indicated that security measures have been significantly ramped up across the country, with a large police presence deployed in Krakow and heightened security in Warsaw and other cities. A period of mourning has been declared in Krakow, set to last until November 11.

Eyewitness accounts and footage depict the attacker's vehicle speeding through the historic city centre, with people fleeing and the sound of gunfire. Shop windows were shattered, and a tram was struck by bullets. Images from the scene showed overturned tables and scattered belongings as the public sought safety.

Police pursued the attacker's car until it crashed, leading to a firefight. A police officer was seen confronting the suspect as he lay on the ground, with footage showing the officer subsequently falling. A Polish minister later confirmed that one officer was fighting for his life while the second sustained less severe injuries.

The suspect, who has been arrested and is undergoing surgery, was described by a minister as an "ultra-nationalist." The motive behind the attack is still under investigation, but initial indications point towards a far-right extremist inspiration.

UK Prime Minister Andy Burnham expressed shock and sadness over the "appalling shooting," extending condolences to the victims' families and reaffirming the United Kingdom's solidarity with Poland. The incident has sent shockwaves through Poland and internationally, prompting concerns about the rise of extremist violence.