A Riverhead, NY, police officer was seriously injured in an accident during a police pursuit yesterday afternoon.

The officer, whose identity was not released by police, is in serious but stable condition at Stony Brook University Hospital, Riverhead Town Police told the Riverhead Local.

The officer was one of several police units involved in the pursuit of a vehicle wanted in connection with an incident in Southold Town, Riverhead Police said.

The crash took place on Osborn Avenue, when the police vehicle, which was responding to the area of the pursuit and was heading north on Osborn Avenue with its emergency lights activated, attempted to pass another northbound vehicle, police said. The second vehicle attempted to make a left turn onto Youngs Avenue and the two vehicles collided, according to the press release. The police vehicle left the roadway and struck a fence.

The operator of the second vehicle involved in the accident was not injured, police said.