More than 100 Tibetans have protested against Chinese mining operations at a site considered sacred by local Tibetan residents, drawing a large police force to the area and prompting fears of clashes.

'The protest took place at Yulshok Gargye in Minyak County, Kham Province of eastern Tibet (Ch: Minya, Kangding County, Sichuan, China)," on May 4, 2016,' Aka Penpa, a monk from South India told the TPI.

He said that "the ongoing mining has led to toxic wastes being dumped into the river resulting in the death of a large number of fishes."

"About 100 local Tibetans then gathered in Yulshok Gargye to demand an end to the project and calling for urgent action to protect environment and wildlife," he added.

The locals have engaged in shouting slogans "there is no rule of law for the Communist Party" and saying they lied to us, they cheated on us, they betrayed us and broken promises.

'Chinese authorities deployed dozens of police forces in vehicles to the protest site, immediately after the event,' TPI's source said.

"The situation is still very tense, as there are growing fears among the locals that the security crackdown, may take place in the open sky," sources said, adding: "It is also unknown whether or not the Chinese authorities arrested any of these Tibetan protesters."

Yulshok Gargye is a sacred place located in the Minyak County, less than 20 minutes walk from the center of Pa-Lhagang, which is one of the holiest site in Tibetan Buddhism.

Waste from the mines, in operation since 2005, but stopped in recent years because local protests against the project, which has been dumped in the "Lhuchu River," resulting in the death of large numbers of fishes. Sources said "they restarted the mine in April this year, resulting in the death of another large numbers of fishes."

"Tibetan nomads have protested the Chinese mining operations, which poison drinking water and kill herd animals," he added.