An armed assailant entered a psychiatric hospital in New Hampshire and shot a person dead, officials said.
The unidentified suspect was shot and killed by a state trooper who was stationed at the hospital in Concord.
Police said they are still working to identify the suspect and the motive for the shooting remains unclear
Officials had initially said there were “multiple victims” in the shooting, but later said the shooting was contained to the front lobby of the hospital and that patients were “safe” at a press conference late on Friday evening.
Police declined to identify the shooter’s victim while their next of kin were being informed.
Authorities are still investigating a suspicious vehicle on the premises.
The attack occurred at around 4pm ET (9pm GMT) at the state psychiatric hospital.
On its website, the hospital describes itself as the state’s “premier, acute psychiatric hospital”.
Aerial images of the hospital show an active scene with numerous police cars with lights flashing outside the hospital.
An armoured vehicle could be seen approaching the scene outside the hospital on Friday afternoon.
New Hampshire’s Department of Homeland Security and Emergency Management said officers were “on scene and responding”.
The state’s governor, Chris Sununu, said: “While the scene remains active as the campus is cleared, the suspect is deceased.
“The state immediately mobilised, and first responders and law enforcement are on the scene. We will provide as many details as possible as this situation unfolds.”
“Troopers are currently investigating a shooting at New Hampshire State Hospital in Concord. There are multiple victims,” the state’s police force said.