The mine belonging to AFRICOM is located in Rubimba village, Sholi cell.
The deceased are identified as Vianney Turatimana, 19, Medard Rwendeye, 19, Ignance Dusabamahoro, 21 and Eugène Nsabimana, 24.
It is said that they were five on mining activities but one of them identified as Eric Habinshuti survived with injuries.
The executive secretary of Muhanga sector, John Rwakana has said that they rushed to rescue the locals soon as the mine collapsed yesterday morning. The last one was retrieved around 12:00 noon.
The bodies were taken to Kabgayi Hospital for postmortem. Habinshuti was also taken to the hospital for medical attention.