New surveillance video released by the NYPD shows there were six young thrill-seekers who took a stolen subway train on a dangerous joyride through the R line — after disabling the control booth’s black box.

Police are searching for three people they say stole an R subway train. The theft was discovered at around 10 p.m. Saturday, the NYPD said.The brazen thieves posted their joyride on social media, authorities said.