A doctor in the central province of Nghe An allegedly stabbed three people in a meeting before committing suicide on Friday.
Investigators said the incident began when Dr. Tran Duy Thanh, 36, argued with midwife Nguyen Thi Hong Hanh at Tan Ky District General Hospital at 7 a.m.
Thanh then slashed Hanh with a knife. He also cut Dr. Nguyen Van Suu and Dr. Lo Van Cung, who tried to stop him.
Thanh later ran to the meeting hall's corner and stabbed himself in the chest. He died at the scene.
Director of the hospital, Cao Tien Thanh, said Tung and Hanh had both professional and personal conflicts before the incident.