Quang Binh police disciplined eight local men for taking liberties with a French woman who was traveling the Phong Nha Ke Bang heritage site alone by motorbike on September 7.
The men were slapped with a fine and received an official warning, VnExpress reported.
The incident occurred at around 11pm when 29-year-old was Emily Marie driving a motorbike on the Ho Chi Minh Road through Phong Nha Ke Bang - a popular tourist destination in north-central Vietnam recognized as world heritage by UNESCO - and was stopped by eight men on three motorbikes.
The men, aged 17-29, touched the tourist's “sensitive body parts” before she drove away.
Marie reported the incident to the police soon afterward, prompting an investigation by Bo Trach District police who considered it a serious case that could affect local tourism.
At the police station, the men admitted that they were drunk while driving to a café in Phong Nha and saw the lone tourist on the empty road.
Police issued a fine and a warning after the French tourist declined to file a lawsuit against them.