Officials familiar with the situation told the Post that the three non-commissioned officers allegedly broke a curfew during Trump's Vietnam visit.
The service members had been working for the White House Communications Agency, a specialized military unit that helps provide top officials with secure communications, the Post said.
Pentagon spokesman Mark Wright confirmed the probe.
"We are aware of the incident and it is currently under investigation," Wright told AFP, without providing additional details.
The Post said that four troops from the same White House team faced allegations around accompanying women, stemming from a trip to Panama in August with Vice President Mike Pence.
In another incident in 2012, Secret Service agents in Cartagena, Colombia were caught soliciting prostitutes.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
