NEW YORK (CBSNewYork) — More officers will now be watching over subways and trains across our area, but they’re not NYPD.

Forty MTA police officers were sworn in on Wednesday.

READ MORE: Sources: Suspect In Shooting Of NYPD Officers Had Multiple Weapons, Including AR-15 With 20 Rounds Hidden Under Mattress

They’re the first of 500 being added to protect customers and employees.

READ MORE: Rangers Stay Red Hot, Take Down Kings In Shootout

The new officers will be assigned to New York City transit, the Long Island Railroad and Metro-North.

MORE NEWS: Knicks' Late Rally Falls Short In Road Loss To Cavaliers

Another 100 officers are expected to be sworn in next month.