The shooting deaths of a reporter and a cameraman in Virginia Wednesday prompted enhanced security measures at television news outlets in New York City, police said.

Extra police units have been deployed "out of an abundance of caution" after the shooting, said John J. Miller, NYPD's deputy commissioner for counterterrorism and intelligence.

"While there is no indication of any threat to media outlets beyond this incident, we have provided an additional layer of security until we have a fuller understanding of the motive behind the Virginia incident," Miller said in a statement.

Miller said officers from the NYPD's Counterterrorism Bureau, Critical Response Vehicles and Hercules teams were ordered to the TV news outlets after the shooting.

Nassau County police said in a statement they will be in contact with law enforcement partners in regard to possible motive and local impact.

"The safety of media personnel and that of the general public is our first priority," the statement said.

The Suffolk County Police Department said that "while no specific threats have been made toward media members in our police district, the department will remain in contact with other law enforcement agencies for the most up-to-date information regarding motive for the Virginia shootings."

Jeffrey A. Marks, general manager of WDBJ-TV in Roanoke, Virginia, identified the two killed as reporter Alison Parker, 24, and cameraman Adam Ward, 27.

The suspect has been identified as 41-year-old Vester Lee Flanagan II of Roanoke, who appeared on WDBJ in Virginia as Bryce Williams.

Officials described the shooter as a disgruntled former station employee. The man recorded himself carrying out the killings and posted the video on social media as he fled the scene.

The suspect later crashed a vehicle, and pursuing troopers found him suffering from a gunshot wound. He died at the hospital, Virginia state police said.