Transcript for Schools on Lockdown in Connecticut Sends Parents Panicking
In the meantime, we turn to the other story unfolding today. 17 schools suddenly put on lockdown in the northeast after violent threats were called in. Frightened parents rushing to the scene, but they were kept at bay. And you're about to see the moment some parents arrived, authorities warning them not to cross the line, or they could be shot. Linzie Janis is there. Reporter: Today, a Connecticut town terrorized. 17 schools and over 10,000 kids on lockdown. We just want to see our kids and hug them. Reporter: It all started around 9:00 A.M. This morning, a man calling an elementary school in Fairfield saying he was heading there with an m-16 assault rifle. Then two high schools in the district getting calls that there were bombs on campus. Minutes later, parents in this town been 30 miles from Newtown, Connecticut, where 26 kids and teachers were killed at school, receiving this heart-stopping call -- All schools are currently in lockdown. There is a police presence at every school. Reporter: Although they were told not to pick up their children, some heading to school anyway. We cannot let you in. They are in lockdown. If you go in there, you're going to get shot, okay? Okay. That's how it works. Reporter: By 11:15 A.M. The lockdown lifted, police giving the all-clear. David, the FBI and police now trying to figure out who made those anonymous threats.
This transcript has been automatically generated and may not be 100% accurate.