Klingon Councilor Discovered to be Undine Infiltrator

On Qo’noS, the Klingon High Council was rocked by the revelation that Councilor Konjah was an Undine. The Undine masquerading as Konjah was killed, and his body taken to the High Council chambers. Chancellor J’mpok then stripped the House of Konjah of its titles and status, and its members were either killed or forced into hiding. See 25th Century - Official Star Trek Online Wiki.