New York Attorney General Letita James subpoenaed Ivanka Trump and Donald Trump Jr., the former US president’s children, according to court documents filed Monday. The subpoena, which was issued in late December, is the latest revelation in the ongoing civil tax fraud investigation of the Trump Organization.

The subpoena requests testimony and documents from Ivanka Trump and Donald Trump Jr. relating to “the valuation of properties owned or controlled by Donald J. Trump or the Trump Organization, or any matter which the Attorney General deems pertinent thereto.” While the full scope of the New York Attorney General Office investigation remains unknown, AP has reported that the office is looking at whether the Trump Organization misled banks or tax officials about the value of assets.

Lawyers for the Trump Organization moved to quash the subpoenas Monday evening. In a statement, James referred to the attempt to quash as a delay tactic. James also indicated she would request the court compel Donald Trump, Ivanka Trump, and Donald Trump Jr. to comply with the subpoenas and testify under oath.

The civil investigation led by the New York Attorney General Office first began in 2020. The Trump Organization is also facing scrutiny from a parallel criminal investigation led by the Manhattan District Attorney Office and later joined by the New York AG’s Office. Last month, the Trump Organization sued James in federal court seeking to block any civil investigation into Trump’s business practices and to bar criminal investigation.