A domestic helper is taking part in police investigations after she was seen punching an elderly man in a wheelchair in Queenstown.

According to Shin Min Daily News, the incident happened at block 53 Strathmore Avenue on February 28, around 2:30 p.m.

Ms Yang, a 33-year-old housewife, said she was walking home with her son when she saw the maid using her hands to hit the wheelchair-bound man in the head.

She said, “The whole process took about two minutes. The maid continued to slap the old man on the head and he raised his hands to protect himself.

“I took a video as evidence but couldn’t watch any longer so I went to scold the maid.”

Ms. Yang noticed that the old man was not wearing a mask. When the maid saw Ms. Yang, she put on a mask for the man, then quickly turned around and pushed him away.

Worried about the old man, Ms. Yang followed the couple to Dawson Place, where she met her husband.

Ms. Yang’s husband confronted the maid with the video and asked if the old man had been beaten. The maid claimed she was just “playing” and tried to leave with the old man.

Ms. Yang and her husband decided to call the police and alert the old man’s son.

“The maid started begging us to let her go. If she really had a clear conscience, why was she in such a hurry to leave? Ms. Yang said.

Police said they received a call for help at 2:45 p.m.

A 36-year-old woman assists in the investigation of a case of self-harm.