Former KIA Regiment 11 commanding officer Seng Tu executed Zau Seng, Zau Tu and Pungshwi Zau Seng in Htan-Ngop, at the Thai Border Camp, on 10 August 1975. KIA headquarters explained to the district and division committees that the leaders were executed because they manipulated the organisation. Gawlu La Doi and other leaders claimed that Seng Tu was a spy, and he silenced the leaders. Thai police arrested Seng Tu on 29 September. Zau Mai sent Regiment 8 commanding officer Khun Cho to Thailand to investigate.