In brief
A rockfall at Oyu Tolgoi in southern Mongolia injured 15 workers, according to Xinhua and Big News Network. The mine operator cited a seismic event that triggered the collapse, and Rio Tinto has suspended underground work as a response. An emergency review is underway, with all injured staff receiving medical treatment and reporting safe status.
Fifteen workers were injured in a rockfall at the Oyu Tolgoi copper mine in southern Mongolia on Thursday, according to the mine operator and Xinhua as the seismic activity struck toward the end of the day.
Xinhua reported that the incident occurred “at around 6 p.m. today,” when a seismic event unfolded along a rock fracture zone inside the mine, producing tremors that caused a rockfall. Oyu Tolgoi LLC said the collapse wounded 15 personnel and that no fatalities were reported. The injured workers are receiving medical attention and undergoing examinations, and the company said a situation assessment is ongoing.
In its own summary, Xinhua noted that three people were injured during a rockfall triggered by seismic activity, an earlier count that differs from the main article’s figure of 15.
Big News Network echoed the operator’s statement, confirming the 15-injury count, the lack of fatalities, and the ongoing medical care for those hurt.
Rio Tinto, which shares co‑ownership of Oyu Tolgoi, announced that underground operations are currently suspended as a safety precaution following the incident.
Meanwhile, the Shanghai Futures Exchange’s monitoring details that a rock collapse at Oyu Tolgoi occurred and that emergency response teams were deployed; all injured employees are reported stable after the response.
The Oyu Tolgoi mine – located in Umnugovi Province – is among the world’s largest copper producers and the country’s most significant investment project, expected to supply roughly 500,000 metric tons of copper annually from 2028 to 2036.
