Republican Rep. Nancy Mace of South Carolina is under investigation by the House ethics committee over allegations that she improperly claimed more than $9,000 in reimbursements for housing costs.

According to a report from the nonpartisan Office of Congressional Conduct, which reviews ethics complaints against lawmakers, Mace's reimbursement requests exceeded her actual Washington D.C. property expenses during several months in 2023 and 2024.

The investigation centers on claims that Mace's requests for reimbursement from funds meant to subsidize housing costs for members of Congress exceeded her actual expenses by $9,485.46.

The Office of Congressional Conduct serves as an independent body that reviews ethics complaints against House members before they are referred to the House Ethics Committee for formal investigation.

Mace, who represents South Carolina's 1st congressional district, has not publicly responded to the investigation. The House Ethics Committee has not announced a timeline for completing its review of the matter.