Lockdown

Guns

Denver Hospital Lockdown

Police end lock down of Denver hospital amid gun report

Bears

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Second bear sighting in Radnor forces lockdown at Ithan Elementary

Schools

Police on Patrol

Lockdown lifted at three Philly schools

Schools

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Philly's Edison High School on lockdown following report of possible weapon in building

Schools

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UPDATE: Kensington high school locked down lifted after security officer's gun goes missing

Lockdown

Philadelphia Police officer cruiser

Ben Franklin HS on lockdown after shot fired in stairwell: report

Schools

Simon Gratz High

Threatening text causes lockdown at Simon Gratz High School

Lockdown

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Police: Marlton teen who brought replica handgun to school 'wanted officers to shoot him'

Schools

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Two Mayfair schools locked down after BB gun incident

Social Media

kitty

Belgians post cat photos after police request no tweets about raids during #BrusselsLockdown

Missing Teen

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Missing Cheltenham teen found dead after police search

Police

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Man in camo, face paint spurs lockdowns at Bucks schools

Lockdown

Police

Lockdown lifted at Lincoln High School after report of gun left outside school

Charges

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Four teens will likely face charges after lockdown at MLK High School

Lockdown

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Suspect in custody after lockdown at MLK High School in Germantown

Police

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No charges after lockdown at Community College of Philadelphia

Lockdown

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Suspect in custody after Philadelphia community college placed on lockdown

Lockdown

Police on Patrol

One in custody after police find fake gun at Chester High School

Shooting

Four Marines, suspect killed in shooting at Chattanooga military reserve center