The Ơ Đu are one of the five smallest ethnic minority groups in Việt Nam. Ơ Đu people have their own language, culture and customs, but these are in danger of being lost.
Mã Pí Lèng Pass is a dangerous pass, some 20km long at heights of 1,200 – 1,400m above sea level.
Border soldiers and police in northern mountainous province of Hà Giang on Monday caught three groups of people trying to illegally enter China.
“When we realise that we all come together to voluntarily search for the martyrs’ remains, there is no border between us. They come here with their heart and human love. And so do we.”
Fourty-one of the country's 63 provinces have established a forest-protection and development fund to look after nearly 6 million hectares of trees.
The Ministry of Natural Resources and Environment will continue improving forecasts to give quick warnings of extreme and dangerous weather to try and prevent national disasters.