Three British tourists were killed during a waterfall tour in Vietnam’s central highlands on Friday, police and news reports said.

Two women and one man died near the Datanla waterfall in the popular tourist town of Da Lat, local deputy police chief Bui Ro said.

He said that the cause of the accident was being investigated.

Vo Tan, Deputy Director, the Da Lat Tourist company, said the three were killed while taking part in a rope activity at the waterfall, the Than newspaper said.

The site is a popular destination for foreign tourists.