What to know

• Poland on Sunday launched a terror probe into the mass shooting in Krakow the day before, in which six people were killed and many more were injured. Authorities have said that the 24-year-old suspect, who used a semi-automatic rifle in his killing spree, was...S1
• Poland has launched a terrorism investigation after a deadly shooting left six people dead and 16 injured. The 24-year-old Polish suspect was reportedly fascinated by far-right ideologies. Authorities are investigating the possible extremist motive as Krakow's...S2
• Six people were killed and 15 others wounded on Saturday in the historic center of Krakow when a 24-year-old Polish man, described by the interior minister as 'fascinated by far-right ideologies,' opened fire. On Sunday, prosecutors launched an investigation i...S3
• Flags are being flown at half-mast and two days of national mourning have begun as Poland reels from a mass shooting in the city of Krakow.S4
• Tourists and locals alike witnessed a mass shooting in Krakow, Poland, that left six people dead and 15 woundedS5
• KRAKOW, Poland (AP) — Tourists and locals alike this weekend witnessed a mass shooting in Krakow, Poland, that left six people dead and 15 wounded.S6
• On Bloomberg This Weekend, Bloomberg News reporter Piotr Skolimowski discusses the investigation into the deadly Krakow shooting and the far right ideology authorities say may have motivated the attack. Speaking with hosts David Gura and Christina Ruffini, Sko...S7
• Six people were killed more than a dozen wounded; government says attacker was inspired by far-right ideologyS8
• At least nine people were dead and at least 16 injured after shootings in Krakow and another town, the police said. The motive remains unclear.S9
• Police said the alleged attacker's father, mother and sister were found dead.S10