Hours after Mayor Eric Adams announced the resignation of New York City’s deputy mayor for public safety on Monday, officials said two lower-level aides who have also figured prominently in federal investigations swirling around City Hall were departing.

The deputy mayor, Philip B. Banks III, was the sixth senior official to leave the Adams administration in the past month.

One of the lower-level staff members, the mayor’s director of Asian affairs, Winnie Greco, also resigned. The other, Rana Abbasova, a mayoral aide who cooperated in a federal investigation that led to the indictment of Mr. Adams last month, was fired.

A spokesman for City Hall declined to explain the firing. But an administration official said it was not an act of retaliation because the mayor did not personally fire Ms. Abbasova; someone else in his administration did.

Ms. Abbasova had previously been on unpaid leave for more than six months. Her attorney, Rachel Maimin, declined to comment.

Steven Brill, an attorney for Ms. Greco, whose two houses were searched in February by F.B.I. agents in a separate investigation overseen by federal prosecutors in Brooklyn, said she resigned of her own accord.

Four federal corruption inquiries have reached into the world of Mayor Eric Adams of New York. Here is a closer look at the charges against Mr. Adams and how people with ties to him are related to the inquiries.

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