Internal affairs officers from the New York Police Department are examining allegations of serious misconduct involving several high-ranking officials in its Special Victims Division, including a sergeant who oversaw the troubled investigation of Harvey Weinstein, according to the police and four people with knowledge of the investigation .

The Police Department’s top spokeswoman, Devora Kaye, confirmed the investigation on Tuesday after it was reported by The Daily Beast, but did not say who was being investigated. She said in a statement the inquiry was not related to the division’s “day-to-day investigative work or any particular sex crime cases it is investigating.”

“Internal Affairs is investigating allegations of isolated incidents of both the misuse of time and a department vehicle within the Special Victims Division,” she said.

A handful of people appeared to be under investigation, including Sgt. Keri L. Thompson, the commander of the DNA cold case squad who directed the 10-month investigation of Mr. Weinstein, according to two of the people with knowledge of the case. There was no indication that Sergeant Thompson’s role in the inquiry of Mr. Weinstein was at issue in the internal investigation.