Krakow will make the two police officers who stopped Saturday's mass shooting honorary citizens of the city, as a public fundraiser for them and their families passed 6 million zlotys.

Senior Constables Jakub Kulik and Artur Morański confronted the gunman in Krakow's Main Market Square on Saturday afternoon, after he drove into the square and opened fire. Six people were killed and 15 wounded in the attack. Police fired the first shot within three minutes of receiving the initial emergency call.

Krakow's mayor, Łukasz Gibała, has applied for both officers to be given the title of Honorary Citizen of the Royal Capital City of Krakow. Prime Minister Donald Tusk called the two men “real heroes”, saying they most likely saved many lives without regard for the risk to their own.

Both officers out of comas

Kulik, 24, was hit by three bullets during the close-range exchange and underwent surgery on Saturday. A former soldier with Poland's 6th Airborne Brigade and a volunteer firefighter in his home city of Bielsko-Biała, he was in critical condition, prompting a national appeal for blood donors. Morański was shot in the chest area and also underwent surgery.

Both officers have since been brought out of medically induced comas, Polish Radio 24 reported. Two surgeons who happened to be dining nearby during the attack gave the wounded officers life-saving care at the scene.

Fundraiser passes 6 million zlotys

A fundraiser launched for the two officers and their families has so far raised more than 6 million zlotys, as donations poured in from across Poland and beyond.

The gunman, 24-year-old Michał Oksiński, died in hospital at 4.30am on Monday after undergoing several operations. Prosecutors are investigating the attack as a terrorist offence. The bodies of his father, mother and sister were found at the family home in Ostrowiec Świętokrzyski, and investigators believe he killed them before travelling to Krakow. Eleven weapons were recovered from the gunman, his car and his home, including two AR-15 semiautomatic rifles.

Krakow's period of municipal mourning ends on Wednesday, with city-organised events cancelled during the mourning period.