At least two Russians died in northern India when a bus, allegedly touring local holy sites, swerved off the road into a river on Tuesday, media reported.
Initial reports on local news websites, which cited police, put the death toll at 13 and said all victims were Russian tourists.
But local news television channel NDTV said only two Russians had died and 10 others had been injured in the crash.
The cause of the incident, which took place on the Bhagirathi River, a tributary of the Ganges, in the state of Uttarkashi, was still unclear.
The victims were likely pilgrims examining Buddhist holy sites, a spokeswoman for the Association of Tour Operators of Russia was cited as saying by Interfax, adding Russian tour firms do not offer trips to northern India.
Russian consulate officials in India are still looking into the incident, Interfax said.