Update on Jan 10, 10:42pm: The woman has been found.
The Singapore Police Force (SPF) is appealing for information on the whereabouts of an 80-year-old woman.
She was last seen at Blk 112 Rivervale Walk, wearing a black shirt, three-quarter pants with blue slippers.
She was also carrying a black pouch.
Here is a picture of her, as provided by the SPF's tweet and her granddaughter.
According to Thung, she is about 1.5m tall, and has neither an identity card nor a handphone with her.
Anyone with information urged to come forward
Anyone with information is requested to call the police at 999.
Top image via SPF's Twitter and Instagram