Police are appealing for public assistance to locate a 68-year-old woman reported missing from Oak Flats.
Anne Mogensen was last seen at her home on Park Crescent about 8.30pm on Wednesday.
Family members reported the woman missing on Thursday night and an investigation commenced by officers from Lake Illawarra Police District.
Police are now appealing for public assistance to help locate Ms Mogensen.
She is described as being of Caucasian appearance, about 170cm tall, of medium build with grey hair.
She was last seen wearing a pink and white beanie with a white top, black tracksuit pants and silver slides.
Police hold concerns for her welfare due to pre-existing medical conditions.
Anyone with information about her whereabouts is urged to call Lake Illawarra Police Station or Crime Stoppers on 1800 333 000.