Cops have arrested a third teen for taking a pair of parked R trains on a dangerous joyride through Brooklyn, police said Thursday. The 15-year-old boy was nabbed in Coney Island Thursday morning after he was identified as one of seven youths involved in the headline-grabbing Jan.

Authorities say they have arrested two of the six suspects wanted for allegedly stealing an R train in Brooklyn last month and taking it on a joyride.

The two boys were part of a six-member group of teens who took the train for a joyride, with a video of the incident going viral.

Two teens were arrested Monday for taking a pair of R trains for a wild joyride through Brooklyn after tampering with the control booth’s black box, police said. One of the boys, just 15, was taken into custody at his Brooklyn high school and slapped with charges of reckless endangerment,

Two teen boys were arrested on Monday after a group of kids took an unoccupied Brooklyn subway train on a joyride last month, the NYPD said.