A Whanganui father has admitted murdering one of his two-month-old triplets.
Thomas Tamatea Ariki-Nui McGregor pleaded guilty in the Wanganui High Court on Tuesday to killing his daughter, Hinekawa Topia.
She died after being taken to Wanganui Hospital in January with head injuries.
McGregor was arrested in July after medical information was obtained by the police.
McGregor also admitted in court to wounding another of the triplets between December 2011 and January 2012. He will be sentenced in December.