BREAKING: Mass-casualty incident declared after a vehicle crashes into a bus in Baltimore, Maryland; 16 patients reported according to scanner.

BREAKING: Miami police investigating reports of shots fired near Miami International Airport Wednesday afternoon.

WATCH: Moment an RAF T2 Hawk jet crashes near RAF Valley on Anglesey, Wales; both pilots ejected and were located shortly after the incident, the Royal Air Force says.

BREAKING: RAF Hawk jet crash at RAF Valley in Wales; both crew members reportedly ejected and an air ambulance is responding.

WATCH: Video reportedly shows the last sighting of the helicopter carrying famous Brazilian singer Rick, of the duo Rick & Renner, before it disappeared near Urubici, Brazil.

JUST IN: All operations at airports across the Northeast are resuming after telecom lines were repaired following a cut by a construction crew, according to Sec. Sean Duffy.

BREAKING: FAA orders a ground stop at Newark, Teterboro and Philadelphia airports due to a "technology breakdown" at Philadelphia TRACON; delays of up to 150 minutes reported. - FAA

Former Fox News associate producer Jennifer Eckhart found dead at her home in Florida; her death has been ruled a suicide. - TMZ

BREAKING: 2 pilots killed after a helicopter crashes while battling the Dome Fire in Yosemite National Park; the fire has burned more than 3,000 acres and is 15% contained.

WATCH: New surveillance footage from a warehouse shows the helicopter crash in Los Angeles that killed 3 people, including an NBC Los Angeles reporter.

BREAKING: Driver in LA crash that preceded the NBC4 helicopter crash charged with 2nd-degree murder and DUI after drugs were found in the vehicle; 5 total victims. She faces life in prison if convicted.

BREAKING: F-16 crashes in northern Michigan; early reports indicate the pilot is conscious. Details are still emerging.

WATCH: New video catches the moment a bus is T-boned by an SUV, resulting in 2 fatalities and multiple injuries in Los Angeles, California.

NEW: The 2 people reportedly aboard the NBC Los Angeles helicopter have been identified as reporter Eliana Moreno and pilot George Marciniw, according to reports.

BREAKING: 3 people confirmed dead after an NBC LA helicopter crashed in Los Angeles; 1 additional person transported to a hospital in unknown condition, according to LAFD.

WATCH: Aftermath of the helicopter crash in Los Angeles.

UPDATE: 1 person confirmed dead after a TV helicopter crashes in Los Angeles; unknown number of souls on board, according to the fire department.

BREAKING: A media helicopter has cashed in San Fernando Valley area in Los Angeles, California. - NBC