Hutt Valley police investigating a fatal axe attack are appealing for sightings of a vehicle and looking for a jacket.

A 55-year-old woman was killed and two others wounded in the attack in Timberlea last Thursday.

Police are calling for sightings of a 1999 silver Subaru Legacy sedan - BTF858 between 5pm and 9pm.

They're also looking for a black Kathmandu puffer jacket which may have been left in Blueberry Grove and Norana Road area in Timberlea.

Anyone with information should contact Hutt Valley police, or call Crimestoppers.