A Singaporean family has appealed to the public for information about their missing 79-year-old father, who has dementia.

Lianhe Wanbao (Singapore) reports that Yee Ah-kum, who is 1.6 metres tall, of thin build and is nicknamed “Sai Gor” – meaning younger brother in Cantonese – was last seen wearing a black polo T-shirt and grey cropped trousers near the public housing block 120, in Geylang East, Singapore, on the afternoon of October 7.

Yee’s 51-year-old daughter told the newspaper that her father was taking a stroll in the neighborhood of Aljunied Crescent at around 1:30pm, attended by the family’s Indonesian domestic helper.

The elderly man told the maid that he badly needed to urinate, and asked her to turn away so that he could do so with privacy in some nearby shrubs. The maid followed Yee’s order.

However, after some five minutes, the maid realized that Yee was nowhere to be seen. She searched the neighborhood for more than an hour for him, but in vain.

The family were extremely worried as Yee had no cash or contact details with him. He needs daily medication for dementia and diabetes.

Anyone who knows the whereabouts of the missing man or may have seen him is urged to contact the police.