Police say they believe human remains discovered in Napier are too old to belong to 14-year-old Kirsa Jensen, who went missing nearly 30 years ago.
Builders discovered bones and a skull on Thursday morning while digging a trench for a fence along Hastings Street in central city.
Napier area commander Inspector Kevin Kalff says police suspect it is not a crime scene, as the remains appear to have been buried for a long time.
Mr Kalff says the bones are being examined in Wellington, and if the examination confirms their suspicions the site will be handed over to the Historic Places Trust.
That rules out speculation the remains belong to Kirsa Jensen, who has not been seen since she disappeared in 1983.