Newtown officials say the school system was placed on lockdown after someone implied a threat during a call to an elementary school.
Interim Superintendent of Schools John Reed says the threat was made shortly after 2 p.m. Monday in a call to Hawley Elementary School. Reed didn't release details, but said no one was hurt.
Reed says Newtown Police Chief Michael Kehoe and other officials responded to Hawley School and joined officers stationed there to investigate. Reed says Kehoe requested the district-wide modified lockdown.
The lockdown ended when schools dismissed for the day and caused 35- to 40-minute busing delays throughout the district Monday afternoon.
Newtown has increased school security since 20 first-graders and six educators were killed at Sandy Hook Elementary School in December.
Copyright 2013 The Associated Press.