In 2369, Tel-Peh commanded the Vor'cha-class attack cruiser IKS Toh'Kaht during its bio-survey mission into the Gamma Quadrant. After the cruiser's crew were influenced by the energy matrix from the Saltah'na energy spheres, the captain began executing officers whom he charged with attempting mutiny. His first officer Hon-Tihl thought he was insane. Later, there was a battle for control over the ship with the conflict spreading to several decks. During the fighting, the captain captured the armory.
On a return course to Deep Space 9, Hon-Tihl, believing he would rather not become a prisoner to the captain, planted a thalmerite device on a beam near the reactor core. As the ship approached the space station Deep Space 9, the device exploded, resulting in the destruction of the Toh'Kaht and the death of the captain. The first officer survived the explosion by beaming over to the station, but died soonafter. (DS9: "Dramatis Personae")