Two people were killed and one was injured when a boulder rolled down a mountain in the central province of Thanh Hoa Wednesday.

The accident occurred at around 3 p.m. while the victims were sitting at the foot of the 50-meter high Vuc Mountain in Dong Son District, witnesses said.

In unrelated news, a landslide at a mine managed by the Tan Hoang An Company in the central city of Hai Phong killed four workers on the spot Tuesday.

In an interview with Thanh Nien, Ta Xuan Phuong, chief of Thuy Nguyen District, where the mine was located, said it was a labor-related accident.