Concern is growing for the welfare of a missing 80-year-old woman with dementia.

Josephine Otunnu disappeared from her home in the Horspath Driftway area of Oxford, near the eastern bypass, at 8am yesterday.

She is 5ft tall, black, of medium build, with brown eyes and grey hair in a crew-cut style. She has small tattoos on her forehead and forearms.

She was last seen wearing a cream polo-neck jumper and a long denim skirt. Insp Darren Carver, of Oxford police, said: "We have carried out a thorough search of the local area, involving the police helicopter, and are now having to widen our search para- meters."

Anyone with information on her whereabouts should call police on 01865 846000.