Federal agents and New York Police Department investigators on Wednesday searched the homes of current and former police officials as part of a corruption investigation, said the city’s police commissioner, Jessica S. Tisch.

The inquiry, which also involves Manhattan federal prosecutors, was focused at least in part on bribery allegations and stemmed from earlier scrutiny of Jeffrey Maddrey, the chief of the department under former Mayor Eric Adams, according to three people with knowledge of the matter.

Mr. Maddrey’s house was also searched by F.B.I. agents on Wednesday morning, although that search was part of a separate investigation, two of the people said.

Those two inquiries were unrelated to the arrest of Frank Carone, Mr. Adams’s former chief of staff, which also took place on Wednesday morning.

Altogether, then, the wide-ranging searches on Wednesday stemmed from three separate investigations, all of them concerning top officials from the Adams administration.

A lawyer for Mr. Maddrey did not immediately respond to a request for comment on Wednesday.

Mr. Maddrey resigned in December 2024 after a subordinate at the department accused him of coercing her into sex.

Ms. Tisch said in a statement that the corruption investigation involving the police officials was continuing and related to “conduct by former and current members” of the Police Department. She said the searches had been conducted by members of the department’s Internal Affairs Bureau and the F.B.I., and that the department was also part of the inquiry.

“When I became Police Commissioner, I promised New Yorkers that under my leadership the N.Y.P.D. would conduct itself with integrity and that there would be a thorough investigation of any claim that members of service failed to meet that standard,” she said. “This investigation and our actions this morning are part of the ongoing effort to fulfill that commitment and hold the Department to its highest ideals.”

This is a developing story. Check back for updates.