At least four junior high school students, among a group of more than 30, drowned Tuesday in a hydropower reservoir in the Central Highlands province of Dak Lak .
Authorities recovered the bodies of the four sixth graders three girls and a boy all aged 13 and are still searching for others, said Tran Thuc, a spokesman for the local education department.
More than 30 students of Ho Tung Mau Secondary School in Buon Don District reportedly went swimming in the reservoir of the Serepok 4 Hydropower Plant at around 10 a.m.
They apparently were swept into the deep waters.
Five students, including the aforementioned fatalities, were found by local residents.
The rescued student is being treated at a local hospital.
Official figures show that more than 6,000 children drown every year in Vietnam, with the total increasing each year.
The Ministry of Labor, War Invalids and Social Affairs said the number of child deaths due to drowning is 10 times higher in Vietnam than other developing countries.
While the country does have 3,260 kilometers of coastline, plus innumerable rivers, canals and ponds, experts have also blamed the government for failing to make learning to swim part of the standard school curriculum.