A video emerged online showing a woman shouting and creating a ruckus outside what appears to be Giant hypermarket.
She was seen screaming something unintelligible as she strutted down the walkway and past the other shoppers.
The woman was seen walking very angrily and even swung her arms violently as she walked past a couple of elderly women.
She then stopped to face the supermarket and started shouting at something or someone inside the outlet, before carrying on her way.
It is unclear what exactly sparked off her actions, but netizens have deduced that the woman was probably having a mental breakdown.
The incident is believed to have taken place at the Giant Hypermarket at Tampines.
Public nuisance
Anyone who makes any noise in excess that is likely to cause annoyance or inconvenience to others in the vicinity or in any public setting could face fines of up to $1,000.