US President Donald Trump's inaugural committee says it has received a subpoena for documents from the Manhattan US Attorney's Office, which is investigating the group.
"We have just received a subpoena for documents. While we are still reviewing the subpoena, it is our intention to cooperate with the inquiry," a spokesperson for the committee said in a statement.
The subpoena on Monday requests documents related to the committee's donors and spending, the Wall Street Journal and the New York Times reported.
In December, the Journal reported that federal prosecutors were investigating whether the inaugural committee misspent some of the record $US107 million ($A148 million) it had raised from donors.
The investigation is examining whether some of the committee's donors gave money in exchange for policy concessions, influencing administration positions or access to the incoming administration, the Journal reported.
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Prosecutors also showed interest in whether any foreigners illegally donated to the committee, the New York Times reported. Federal law prohibits foreign contributions to inaugural funds.
A spokesman for the US Attorney's Office in Manhattan declined to comment to Reuters.
The White House did not immediately respond to a request for comment.
Although campaign finance laws restrict the size of campaign contributions, inaugurations can accept unlimited donations, including from corporations.
The amount raised by Trump's inaugural committee, chaired by real estate developer and investor Thomas Barrack, was the largest in history, according to Federal Election Commission filings.
