A 63-year-old woman has gone missing from Upminster.
Pauline Medley has not been seen since leaving her home at 10.30am on Monday.
She is described as a white, 5ft 3ins tall and of medium build, with short reddish-brown hair.
She is thought to have been wearing dark blue or black trousers, a blue shirt, possibly with a dark blue t-shirt underneath, and a light blue rain jacket.
A spokesman for the police said officers believe Pauline may be travelling on trains and buses and has been known in the past to travel to Tower Hill, Embankment, Paddington and Victoria.
Anyone with information is urged to call officers on 101.
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