Naval Station Reopened After Morning Lockdown"The person driving "did not follow directions of the gate sentry."
Morton East High School Lockdown Lifted, No Danger FoundMorton East High School in Cicero is on Lockdown, school officials reported.
SUV Crashes Into Woodfield Mall, Slamming Into Stores, KiosksAn SUV smashed into Woodfield Mall and drove down the main hallway, slamming into a kiosk and stores, sending panicked shoppers scrambling for safety.
Lockdown Lifted At Hammond Schools; Shooting Threat At Hammond High Deemed UnfoundedPublic schools in Hammond, Indiana, are on lockdown Wednesday morning, as police investigate a threatened shooting at Hammond High School.
Lockdown Lifted At Belvidere Schools After 'Safety Concern' At High SchoolSchools in Belvidere are locked down following a reported threat at Belvidere North High School, officials said Thursday morning. 
Lockdown Lifted At Illinois State Capitol; White Powder Deemed Not To Be HarmfulThe Illinois State Capitol was locked down Thursday afternoon, after a white powder was found in a bathroom, but crews later determined the substance was not dangerous.
Gun Scare Shuts Down Lockport High School Homecoming DanceWhile in custody, the student admitted he had brought a BB gun to the dance, but had passed it to another student when he saw police searching the fieldhouse.
Chilling School Shooting 'Lockdown' Nursery Rhyme Goes ViralA "jarring" nursery rhyme posted in a Massachusetts classroom to help prepare young children for a lockdown has gone viral.
Lockdowns Lifted At Richton Park Schools After Nearby Shooting, StabbingSchools in south suburban Richton Park were locked down for about an hour on Thursday, after a shooting and stabbing about a half mile from Rich South High School.
Blown Stroller Tire Mistaken For Gunshot Prompts Lockdown At Skokie PreschoolA blown stroller tire was mistaken Tuesday morning for a gunshot or explosion at a park district building in north suburban Skokie, prompting a lockdown at the facility and its preschool.
"Mistaken" Report Of Man With Gun Prompts Search Of Schaumburg Office BuildingSchaumburg Police Sgt. Christy Lindhurst said said the reports of a person with a gun turned out to be "mistaken," and the building was reopened by 12:30 p.m.