The Islamic State claimed responsibility for the terrorist attack at the Crossroads Mall in St. Cloud, Minnesota in an online statement put out by the Amaq News Agency.
The terrorist wounded nine people before being killed by an off-duty police officer.
The Amaq News Agency is run by ISIS and is used to keep the group’s supporters and enemies around the world updated with ISIS military victories and terrorist acts, in accordance with how the group wishes to present itself.
“The person who carried out the stabbing action yesterday in Minnesota is a soldier of the Islamic State,” the statement read, “and he carried out the attack in response to the calls to target residents of the countries of the Crusader coalition.”
ISIS has repeatedly put out calls for supporters to carry out acts of terrorism in their countries of origin.
The 22-year-old terrorist was of Somali origin and asked victims if they were Muslim, stabbing them if they were not. Law enforcement is still investigating his motive and whether he had links to known terrorist groups including the Islamic State or whether he acted alone.
“We're trying to get to the bottom of his motivations,” St. Cloud Police Chief William Blair Anderson told CNN on Sunday.
Islamic State supporters also took to social media to praise the bomb that hit the Chelsea neighborhood of Manhattan on Saturday night, injuring 29 people.
“The lions of the Caliphate roar in New York, we cause you pain inside your house, the carrier of the Cross,” one Twitter user wrote.