A statement was made from office of city Sheriff of Harford in Maryland, norast of United States.
In statement, 5 people working in same business were shot in an armed attack, 3 people died in event, 2 people were hospitalized as wounded.
Police noted that suspect in Edgewood area, "Emmorton business Park", was one who performed attack.
On or hand, due to attack, some schools and businesses in same area closed doors and no visitors allowed to enter stated.
The detailed description of subject is expected to be carried out later in hours.