Norwalk police responded to Norwalk High School to investigate a threat Friday, which they said appears to be a hoax.
Police said their dispatchers received a call claiming there was a student at Norwalk High School with a weapon. Officers responded and the school was placed on lockdown. The nearby Naramake and Nathan Hale schools were also locked down as a precaution.
After a thorough search of the school, including backpacks and belongings left by students after they were dismissed, no weapon was found.
Norwalk police continue to investigate the call and are working with federal agencies to track down the caller.
"Norwalk Police Department takes this threat to our community very seriously, along with the disruption of our schools and the impact on our community members," police wrote in a release.
Anyone with information is asked to call Detective Ribisl at 203-854-3029 or via email at firstname.lastname@example.org. Anonymous tips can be made to the Norwalk Police Tip Line at 203-854-3111, online at www.norwalkpd.com or by text by typing "NORWALKPD" into the text field, followed by the message, and sending it to TIP411 (847411).