DEVELOPING: Connecticut State Police are responding to reports of a shooting at an elementary school that police sources say left at least one dead.
There are also multiple reports of injuries at Sandy Hook Elementary School in Newtown, according to local news outlets.
Authorities told the Hartford Courant that one shooter is dead. Earlier reports of a second shooter are unconfirmed, according to the newspaper.
Shortly after 9:40 a.m., police reported that a shooter was in the main office of the school.
A man who answered the phone at the Newtown Volunteer Ambulance Corp. told Fox News that they have two ambulances on the scene.
The school superintendent’s office, however, said reports of a shooting are not confirmed. The district has locked down schools as a preventive measure to ensure the safety of students and staff.
State police spokesman Lt. Paul Vance said they have a number of personnel on the scene to assist.