Te Rauparaha then hired the brig Elizabeth, captained by John Stewart, to transport himself and approximately 100 warriors to Akaroa Harbour with the aim of attacking the local tribe, the Ngai Tahu. Hidden below deck Te Rauparaha and his men captured the Ngai Tahu chieftain Tamaiharanui, his wife and daughter when they boarded the brig at Stewart's invitation. Several hundred of the Ngai Tahu were killed both on the Elizabeth and during a surprise landing the next morning. During the voyage back to Kapiti the chief strangled his own daughter Nga Roimata, apparently to save her from expected abuse. Te Rauparaha was incensed and following their arrival at Kapiti the parents and other prisoners were killed, Tamaiharanui after prolonged torture.