A shooting at Willowbrook Mall in Wayne, New Jersey has prompted a mass casualty response. Police are investigating; number of victims unknown.

An apparent "mass casualty" overdose incident shut down roads and sent 27 people to local hospitals in West Baltimore on Thursday, and police are investigating how it happened. Emergency crews were ...

A nursing home that caught fire in Bristol Township on Dec. 23 was declared a level 2 mass casualty incident by responders.

At least one person was killed and several others injured in a “mass casualty incident” when a private boat plowed into a ferry in Florida before fleeing the scene, authorities said. The deadly crash ...

A quiet afternoon in suburban Pennsylvania descended into chaos after a powerful explosion tore through a nursing home, ...

EL PASO, Texas (KTSM) — One person has died, and eight other people were injured after a “mass casualty incident” Thursday morning, May 8, on Interstate 10 at Transmountain after a tow truck, hauling ...

When a gunman opened fire Thursday in a Seattle Pacific University building, shooting two people, the Seattle Fire Department was ready. “We have been practicing this type of thing for a long time ...

PONTIAC, Mich. (WXYZ/CNN Newsource/WKRC) - A mass casualty event at a school graduation was narrowly avoided thanks to a few courageous bystanders and one timely tip ...

This video is no longer available. At a scene where there’s more victims than medics, whether it’s a crime scene, the scene of accident or on a battlefield, the future of that initial screening could ...