This was reported by the local Fox News affiliate.
It is clarified that an armed man is moving around the city in a stolen car.
He has already carried out several attacks in different parts of the city.
The exact number of dead and injured has not yet been indicated.
According to the TV channel, the shooting occurred near the site where the St. Patrick's Day parade was supposed to take place, which is why organizers decided to cancel the event.
The police are currently searching for the culprit.
Earlier in Arkansas, three people were killed in a shooting at a party.