Facebook CEO Mark Zuckerberg’s personal security chief has been placed on administrative leave after two former employees of Zuckerberg’s household staff accused him of sexual harassment and inappropriate workplace conduct.

A spokesperson for Zuckerberg’s family office confirmed in a statement that Liam Booth, the Facebook CEO’s personal security chief, is on administrative leave pending the end of an investigation into the allegations against him.

Business Insider on Thursday reported that two former members of Zuckerberg’s household staff had made accusations against Booth in legal letters.

“The family office takes complaints of workplace misconduct very seriously and our human resources team promptly investigates all such matters,” Ben LaBolt, a spokesman for the Zuckerberg family office, said in a statement.

LaBolt said the Zuckerberg family was made aware of the allegations after the former staff members “engaged legal counsel” with The Bloom Firm.

“The allegations against Liam Booth were brought to the office’s attention for the first time by The Bloom Firm after both former employees had left employment by the family office and engaged legal counsel,” LaBolt said in the statement. “As soon as The Bloom Firm presented these allegations, the family office engaged Munger, Tolles & Olson, an outside law firm, to conduct an investigation of all allegations made by The Bloom Firm to determine whether the claims have merit.”

“The investigation is ongoing,” he said. “Mr. Booth is on administrative leave pending the completion of this investigation.”

According to reports, Booth has been accused of making racist and homophobic remarks about Priscilla Chan, Zuckerberg’s wife, and members of Zuckerberg’s staff.

Booth is a former Secret Service agent and has been working for Zuckerberg since 2017.