A Thai soldier killed two people and wounded one other in a shooting at a military facility in Bangkok on Wednesday, police and army officials said. 

Sergeant Major Yongyuth Mungkornkim, a clerk at the Royal Thai Army War College, shot three soldiers around 8:45 a.m., the military said in a statement. 

The 59-year-old tried to flee the scene but surrendered himself around 10 a.m., deputy national police spokesman Kissana Phathanacharoen told reporters. 

"The army would like to offer condolences to the families of the deceased soldiers and the wounded. This incident was a loss for both the families and organization. It is something that wasn't expected to happen," deputy army spokesperson Senior Colonel Sirichan Nga-thong said in a statement. "The cause and motivation for the incident is under investigation."