NEW YORK (CBSNewYork) — Teens are up to no good on the subways again.

A video posted to Facebook over the weekend shows the teenagers at the controls of a subway car, CBS2 reported.

The shaky video isn’t very long, just a few seconds, but you can see the glowing lights of subway controls and you can hear expletives, a horn and laughter.

The video showing a teen sitting in the rear cab was posted on Facebook Sunday, but the page has since been taken down.

The MTA and transit experts said the train cannot be controlled by the rear cab, but what the teens did is still a crime of trespassing — unnerving for some straphangers.

“I don’t know how easy the access is. I mean, if the access was indeed easy, that would be a problem,” said Chip Kidd, Manhattan.

“It worries me. Anything can happen. You know, you have to be very careful,” said Mitali Jani, of Princeton, New Jersey.

“It does concern me just in terms of the terror alert here in the city,” said Matthew Flood, of Staten Island. “It concerns me that people have access to that. There’s not better security? Better monitoring of those areas?”

It’s yet another instance of teens causing trouble underground.

Last month, 16-year-old Keyshawn Brown was arrested and charged with arson, reckless endangerment and criminal mischief after a video posted purportedly showing Brown throwing a piece of metal on a track.

Other video and pictures were also posted online of teens calling themselves “The Conquerors.”

So is there a connection between this latest incident and that group? The MTA would only say it is investigating the matter.

As for the video, it’s not clear what train they were on or where it was shot.