A member of Vice President JD Vance's security detail is being investigated over allegations tied to a suspected news leak, the U.S. Secret Service said Thursday.

The probe follows a report that the vice president wanted to fly his son to a golf lesson on a military helicopter.

Anthony Guglielmi, a Secret Service spokesperson, said the security team member faces an internal investigation and a potential criminal inquiry over allegations involving compromised "operational and information security."

"While we will not comment on the specifics of this matter, one principle is unequivocal: any conduct that potentially threatens the safety of a protectee will not be tolerated," Guglielmi said in a statement.

The agency did not identify the person under investigation.

The probe comes after U.S. broadcaster MS NOW last week reported that Vance's security detail had become increasingly "fed up" with personal travel requests by the vice president and his family.

According to the report, Vance's requests included flying him and his son to a secure golf course at Joint Base Andrews near Washington on board Marine Two, the call sign of the helicopter that carries the vice president.

The flight ended up being canceled because of thunderstorms, the report said, but was one of a number of last-minute requests made by the Vances.

Vance's office referred questions to the Secret Service.

Vance and his wife, Usha, live in the vice president's residence at the U.S. Naval Observatory along with their young children.

On Sunday, the couple welcomed their fourth child, Alec Neel Vance, the first baby born to a sitting vice president in more than 150 years. He's joined by older siblings Ewan, 9; Vivek, 6; and Mirabel, 4.