Police are searching for three people they say stole an R subway train over the weekend and posted their joyride on social media.

We can now meet the youths behind the great train robbery. New NYPD footage shows for the first time the faces of the backpack-wearing teen troublemakers who cops say took an empty subway train on a joyride over the weekend.

The thrill seekers, all clad in black and wearing masks, are seen on video at the controls of a train traveling upwards of 30 mph before they returned the pilfered train to near where they swiped