Blue Alerts are issued to help catch people who are believed to have wounded or killed local, state or federal law enforcement officers. Here are the criteria for a Blue Alert: A law enforcement officer must have been killed or seriously injured by an offender.

Benjamin Hanil Song is accused of shooting an Alvarado police officer during an attack on the Prairieland Detention Center.

Texas is one of several states that use Blue Alerts, but what is it, and how does it differ from AMBER Alerts?

A Texas firefighter pleaded for an alert amid rising flood waters. It took an hour to go out - Leaked audio provides new alert timeline as officials face scrutiny over when residents first learned of

In the wake of the deadly flash floods in Texas, state leaders are exploring whether to install more flood warning sirens. Such sirens can save lives if they're part of a larger warning system.

A Texas official said no person has been rescued alive from flood damage since Friday. This comes as the number of people missing remains above 150 and as questions remain about the emergency alerts preceding the catastrophic event.

At least 120 people are dead and 170 remain missing after devastating flash floods swept through Kerr County, Texas.

At least 119 people have been found dead in nearly a week since heavy rainfall overwhelmed the river and flowed through homes and youth camps in the early morning hours of July 4. Ninety-five of those killed were in the hardest-hit county in central Texas,