New Delhi, Nov. 8 -- Polish prosecutors opened a terrorism investigation on Sunday after a gunman killed six people in Krakow's Main Market Square, with three members of the suspect's family later found dead at his home.

The shooting on Saturday, November 7, left at least 15 other people injured, including two police officers. Police shot and wounded the suspected attacker, who remained in hospital in critical condition, according to reports published on Sunday.

Gunfire in the city centre

Police said the gunman drove into the square at about 3 p.m. local time and fired at people at random. The attack struck a busy tourist destination in the heart of Krakow's historic centre.

Four women and two men were killed. Officers exchanged gunfi...