Police have narrowed down an area of interest in the ongoing search for missing Christchurch woman Elisabeth 'Lis' Nicholls

Lis was last seen at the Chateau on the Park in Riccarton on the evening of Wednesday 4 June, and Police and her family remain desperate to locate her.

Police have a possible sighting of Lis at the eastern end of Hagley Park, around the Park Terrace and Salisbury/Montreal Street areas around 8:25pm that night.

The police are appealing to anyone in this area in particular to please check their properties, and notify Police of anything unusual.