Yesterday at about 1:30 p.m., Alexian Lien, 33, was driving a Range Rover north on the West Side Highway near 125th Street with his wife and 5-month old daughter as passengers, according to reports in the Post and Daily News. About 20 seconds into the video, group of motorcycle and dirt bike riders surround the SUV in the center lane, and a motorbike rider appears to hit the brakes and get into a fender-bender with Lien’s vehicle.

Lien and the group of motorbike riders around him came to a stop. Surrounded, Lien then hit the accelerator (at about 50 seconds into the video), running over at least three motorcycles and striking one man, breaking his leg, according to NYPD. The video shows the group of motorbike riders chasing Lien, exiting the highway at 178th Street in Washington Heights. When Lien reaches traffic stopped at a red light at Wadsworth Avenue (after the six-minute mark), the motorbike riders dismount, and one man uses his helmet to smash Lien’s window.

The video cuts off at this point, but police say the men beat up Lien, who went to Columbia University Medical Center, where he received stitches and was released. The Daily News reports that NYPD has not made any arrests, but is still investigating.