On Wednesday, Eyewitness News got a look at some of the cars that have been pulled from service that now sit at a rail yard in Queens.
Since early May, 63 MTA subway cars have been vandalized across the city.
More than 200 glass windows on the trains have been damaged.
Police believe one man is involved in the dozens of incidents that occurred on the 2, 3 and 7 lines in the Bronx and Queens.
He has been seen carrying a hammer.
"Window glass, side-door glass, half-picture windows, full-picture windows and it's been all over the cars," an official said. "This is really a waste of New York City Transit resources, pulling these trains out of service, there's a tremendous cost in material and labor to get these trains repaired and back out for customers."
Anyone with information in regard to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
ALSO READ | Sex offenders at Upper West Side hotel will likely extend their stay
* Get Eyewitness News Delivered
* More New York City news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube