The students, reported to be in their third year and majoring in mineral processing engineering, fell into a tank at Wunugetushan mine.

The students, reported to be in their third year and majoring in mineral processing engineering, fell into a tank at Wunugetushan mine.

Six students died after falling into the mineral processing works while touring a mine in China.

Details emerge of the hours-long rescue effort while state media and the online public demand a full investigation and accountability.