A veteran cop in Boston is off the street after allegedly using the N-word during a confrontation with students he referred to as “monkeys,” the teens claim.

Officer Joseph Lynch, a 16-year department vet, is on administrative leave following the Sept. 13 incident at a McDonald’s near Roxbury Prep High School, where he responded to a noise complaint after a manager called cops and said a rowdy group of teens refused to leave, the Boston Globe reports.

Parents of the ninth and 10th-grade students inside the McDonald’s said the officer then started getting physical with the group just prior to the start of classes.

“The police officer was asking them to leave, but then he changed his attitude and started pushing the kids and using bad language toward them,” Rafaela Martinez, whose 15-year-old son was among the group, told the newspaper.

Lynch then followed the students up the street to their nearby high school while hurling racial slurs — including the N-word — and called them “monkeys,” they told the Globe.

Martinez, meanwhile, acknowledged that the teens were “really loud” and got up in Lynch’s face while trying to record him using their cellphones.

“The police officer is still a human being,” she said. “Sometimes we just have a bad day.”

A police department spokesman said Lynch would remain on administrative leave until an internal affair investigation is completed.

But Police Commissioner William Gross visited the school on Thursday along with Suffolk County’s district attorney to meet and apologize to the students.

“They’re walking away from this encounter on Friday feeling attacked and racialized and dehumanized,” Gross told the Globe. “We have to wait and see what the investigation shows, but the allegations are hate-filled and fuel distrust of law enforcement.”

Boston’s mayor characterized the allegations as “incredibly disturbing” and commended police officials for taking action.

A spokeswoman for the school said several students and staffers have shared “deep concerns” regarding both Lynch’s behavior and the slurs he’s accused of making toward the teens.