ST. CLOUD, Minn. (AP) – St. Cloud Police Chief Blair Anderson says there’s nothing yet to suggest that it more than "was a lone attacker" that stabbed nine people at a Minnesota mall over the weekend.

Gov. Mark Dayton said at a Monday news conference said the state will help however it can and asked citizens of St. Cloud and the state to "rise above" the incident.

Dayton met with St. Cloud Mayor Dave Kleis and other city officials before the news conference.

Kleis said it’s been a trying time for the city and said he has tremendous respect for the off-duty officer who shot and killed the attacker.

As of Monday, ten people were reported injured by the attacker.

Federal investigators say they’re looking at the attack as a potential act of terrorism after the Islamic State claimed the suspect had heeded its calls for attacks in countries that are part of a U.S.-led anti-Islamic State coalition.

The motive is unknown.