'Active Shooter' Report At Military Base Was False AlarmA military post near Washington says a lockdown has been lifted, except for the medical building where an active shooter was reported.
Gun Discovery Prompts Temporary Lockdown Of Delco SchoolAuthorities searched the school and an arrest was made.
Officials: Student's Alleged Bomb Comment Prompts High School LockdownOfficials say students are back in class, and the remainder of the day will go on as scheduled.
Manhunt Underway In Barnegat As Police Search For Escaped PrisonerSchools in Barnegat Township, Ocean County are on lockdown as police search for an escaped prisoner.
Officials: Individual Who Dropped Bullets In PA High School Was Trying To Cause Early DismissalNo weapons or additional bullets were found, and authorities say there is no threat.
Shooter Caught At US Capitol, Injuries UnclearInitial reports said a police officer sustained minor injuries, but later reports raised doubts about who, if anyone, was shot.
Lockdown Lifted At Phila. High School Following Report Of Weapon In BuildingEdison High School, on W. Luzerne Street, was placed on lockdown just before 10:45 a.m. Thursday.
Lockdown Lifted At Phila. High School After Weapon Taken From School Officer's CarThe investigation is ongoing.
Gunshot Fired Inside Philadelphia High School During FightPolice say a gun went off during a fight at a Philadelphia high school, but no one was injured.
Lockdown Lifted At Penn State Dorm Following ThreatPenn State officials say university police have in custody a man who threatened to harm his children who are students, causing a lockdown of a campus residence hall.
School Lockdowns Lifted Following Armed Robbery On Main LineAuthorities say the victim was outside his work truck when he was allegedly robbed at gunpoint.
Gun Scare Prompts Temporary Lockdown Of Lincoln High SchoolOfficials say Lincoln High School in the Mayfair section of the city is on lockdown after a possible threat was reported.