Gardaí have issued an appeal to trace a 65-year-old woman with Alzheimer's, who has been missing in Dublin since yesterday morning.

Margaret (Peggy) Mangan left Mount Tallant Avenue in Terenure for a walk with her dog, a cavalier King Charles spaniel, just after 11am.

She was seen with her dog on Clanbrassil Street at around 12pm.

She was seen again in Glasnevin at about 3pm, near where the Mrs Brown film was being shot.

There was a further possible sighting of her near the M50 Finglas junction at around 5.30pm.

Gardaí have released CCTV footage of Peggy walking with her dog in Dublin yesterday as part of their inquiry.

Peggy is around 1.57m (5’2") tall, of very slim build.

She was wearing black trousers and a white coat when she left home.

Anyone with information is asked to contact Terenure Garda Station on 01-6666400.