HANOI (REUTERS)

At least seven people died on Saturday when a bus carrying 19 passengers overturned on a mountainous road in ​Vietnam's northern province of Yen ‌Bai, state-run media reported.

The 29-seat ​bus carrying a ⁠charity ‌group was travelling downhill when it flipped and was crushed, according to Vietnam News ⁠Agency.

Rescue teams pulled 10 survivors ⁠from the wreckage, while others remained trapped as of ​10:30 a.m. (0330 GMT) as heavy equipment was deployed to cut through the vehicle, Hoang Anh Tuan, chairman ​of Phinh Ho ‍commune, told VNA. Tuan said the crash was likely caused by brake ‍failure.

Police, ​military units, local officials ‍and residents were mobilised for rescue efforts, while authorities said an investigation into the cause of the accident ‌was ongoing, according to VNA.