The Newtown Police Department reported that they had received a bomb threat at Sandy Hook Elementary School at around 02:00 p.m. GMT. Following the threat, the school was evacuated.
As the police department specified, law enforcement was deployed to the school and conducted a search as a precaution, but they do not believe the information about the bomb was credible.
The threat was reminiscent of another deadly tragedy that took place in the same school six years ago. On December 14, 2012, gunman Adam Lanza shot and killed his mother, Nancy Lanza, and then went to the Sandy Hook school and opened fire before later committing suicide.
Earlier in the day, the Detroit Police Department reported that it had opened a probe into numerous threats targeting two courthouses in the city and three hospitals.
The threat comes in line with a wave of other similar incidents that alerted hospitals, businesses and other facilities across the US and in Canada a day before. The authorities in both countries stated that the threats were received either by phone or by email.