An injured woman is missing after she walked out of Burwood Hospital in Christchurch today.
The 42-year-old, who has a head injury, has been missing since she left on foot at 10.20am.
She may appear confused and has a tendency to walk into people's houses at random, said police.
The woman is described as medium height, with a thin build, long blonde hair and answers to Nina.
She was wearing black tights and a chequered shirt when she disappeared.