Authorities are investigating a shooting with “multiple victims” at New Hampshire Hospital, a psychiatric facility in Concord, state police said Friday afternoon. The shooter is dead, according to the New Hampshire Homeland Security and Emergency Management Division, though its post on social media did not specify how that person had died. It was unclear how many people had been killed or injured. State police and emergency management investigators were at the scene shortly after 4 p.m., according to posts on their respective X accounts.