A grand jury is reviewing evidence in the federal corruption probe into Mayor Eric Adams’ campaign fundraising — likely for the purpose of issuing subpoenas in the case, sources told The Post.

The development related to the FBI probe into Adams’ 2021 campaign came as sources also revealed that a person connected to the mayor had recently received a subpoena connected to the investigation.

The US Attorney’s office in Manhattan declined to comment.

A spokesperson for Adams did not confirm nor deny the grand jury involvement in the federal investigation.

“City Hall has said since the beginning that it will cooperate fully with this review — and it has by making individuals available to discuss any details necessary in order to reach a just and timely conclusion,” the spokesperson said.

Sources told The Post that grand juries routinely sit during high-level federal probes such as the one into Adams’ campaign.

Federal grand juries can bring indictments, but sources said the one being used in the mayor’s campaign probe is likely for the purpose of issuing subpoenas.

Adams has not been accused of wrongdoing, however his campaign has been under investigation since November when federal prosecutors began looking into allegations that the Turkish government illegally funneled money to the mayor’s campaign.

At least three people in Adams’ circle had their homes raided by federal agents as part of the investigation — including former Turkish Airlines executive Cenk Ocal, who worked on the mayor’s transition team, and City Hall aide Rana Abbasova.

Adams’ top campaign fundraiser Brianna Suggs’ home was also searched.

Authorities were looking for evidence of the theft of federal funds, wire fraud, conspiracy to steal federal funds and wire fraud conspiracy, according to a search warrant.