Federal law enforcement agents have raided a hotel owned by a businesswoman who has been linked to potentially illegal campaign contributions to the New York City mayor, Eric Adams.

Federal officials executed a search warrant on Thursday at a hotel that the hotel developer Weihong Hu owns in Queens, according to three sources with knowledge of the matter. The hotel hosts a shelter program for formerly incarcerated people which has resulted in millions of city contract dollars going to Hu’s business.

Hu was the subject of a previous investigation by the Guardian in conjunction with the news sites the City and Documented that found Hu had scored lucrative contracts and other benefits from city agencies after hosting fundraisers for Adams.

The raid is part of an ongoing criminal investigation by federal prosecutors with the eastern district of New York, one law enforcement source with knowledge of the matter confirmed.

In a phone call, Hu’s attorney, Kevin Tung, said he had not heard about the raid from his client, but speculated that it could have to do with the people who are part of the social services program at the site.

“Maybe it has nothing to do with her,” Tung said. “She rents this place to the city. The city is running the place. Maybe there are people making trouble.”

In a statement to the Guardian, Elizabeth Koke, a spokesperson for Housing Works, the social service non-profit operating the shelter program at the site, said that the federal raid did not target any parts of the hotel that their program operates in.

“Housing Works was not the target of the action by federal authorities – nor were any of the clients Housing Works serves at this site, agency management, any subsidiaries, subcontractors, etc,” said Koke. “The agency will continue to provide the highest quality services to all its clients in over 30 locations throughout New York City. Management will endeavor to minimize any action that could disrupt the wellbeing of staff and clients.”

Earlier this year, in the wake of reporting by the Guardian, the City and Documented, federal authorities also raided two of the homes of Winnie Greco, a longtime aide to Adams with close ties to Hu.

Greco lived for several months in the hotel owned by Hu in Queens, despite the fact that the hotel was hosting the city-funded shelter program. The aide also appeared with Adams at a fundraiser, hosted by Hu, which was the subject of subsequent allegations of illegally reimbursed campaign contributions, as the Guardian previously reported.

Greco has since resigned from her position in the Adams administration. Through her attorney, Greco has previously declined to reply to questions about campaign donations she helped raise for Adams.

In a statement, Kayla Mamelak Altus, a spokesperson for Adams, sought to distance his administration from the law enforcement raid.

“Mayor Adams has been clear that this administration is dedicated to following and upholding the law and we will continue to cooperate with any law enforcement requests, including those unrelated to the mayor,” she said.

Tung, Hu’s attorney, has previously disputed allegations of wrongdoing on behalf of his client.

“All of these are allegations … and most of them, I don’t think they’re true,” he said at the time.