NEWARK -- A Newark police officer was suspended without pay Thursday amid an investigation into a police-involved incident that allegedly left a 14-year-old with a dislocated shoulder, authorities announced Thursday.

Investigators from the Newark Police Department Office of Profession Responsibility found that Detective Wilberto Ruiz failed to submit reports documenting the incident and his participation in it until 24 hours after it occurred, said Newark Public Safety Director Anthony Ambrose.

"Although this investigation is in its early stages, we have determined that the incident does involve members of the Newark Police Department," Ambrose said. "This is an unfortunate incident. However, it is not a reflection on the entire Department but on the actions of a few. I will not tolerate officers' behavior that violates laws to enforce laws or actions that violate our state laws or the Department's rules and regulations that govern us."

The incident occurred on Tuesday when the alleged victim, whose name is being withheld by NJ Advance Media, was approached by three police department vehicles after exiting a bodega near 14th Street and 14th Avenue, confirmed Newark Police Department spokesman Capt. Derek Glenn.

The alleged victim was later approached by several on-duty Newark police officers. The victim now claims that police officers attempted to detain him and dislocated his shoulder at some point during the incident, Glenn said.

Accompanied by his mother, the alleged victim later reported the incident to officers at the the 4th precinct building. The on-duty tour commander summoned an ambulance, and an investigation was initiated, Glenn said.

Several other members of the unit who police say participated in the incident have been reassigned, Glenn said. The unit also includes an officer from the Essex County Sheriff's Office, he added.

Reached Thursday afternoon, Newark FOP President James Stewart urged against a rush to judgment in Ruiz' case.

"The last thing any cop wants is for somebody to be injured during an interaction with them," he said. "Although Detective Ruiz's name and picture are out there for all to see, he has only been suspended for failing to turn in paperwork in a timely manner. Let's wait until the ECPO finishes their investigation, including the review of video surveillance, to see their thoughts on how the young man was injured."

Authorities from the Essex County Prosecutor's Office Professional Standards Bureau are investigating the incident to determine whether an assault occurred, Glenn said.

Vernal Coleman can be reached at vcoleman@njadvancemedia.com. Follow him on Twitter at @vernalcoleman. Find NJ.com on Facebook.