A user going by the nickname "Xiaoqiang's Lover" posted the complaint on the Chinese social media platform Xiaohongshu.

She stated that on Aug. 7, she bought a box of sushi at the Orchard Central mall location and was horrified to find a small cockroach hidden inside the rice of a shrimp sushi.

The customer reported feeling "nauseous" and immediately filed a complaint with the store.

Photos posted by a customer show a cockroach inside a sushi bought at Don Don Doki in Singapore. Photos from Xiaohongshu

According to a screenshot of the written response she shared, which was later reported by 8World, Don Don Donki apologized and offered a full refund for the meal.

The Japanese chain also provided a S$50 voucher as compensation, which the customer could collect from the Orchard Central outlet by contacting the duty manager.

The company stated it is actively investigating the incident, conducting a thorough cleaning of the food preparation area, and reminding employees to exercise greater care when handling and preparing food.

The Singapore Food Agency (SFA) confirmed to AsiaOne that it is aware of the incident and has launched an investigation.

The agency noted that it may reach out to the customer for further information during its evidence-gathering process, adding that enforcement action will be taken if sufficient evidence of a violation is found.

"Food safety is a joint responsibility," the SFA stated. "While SFA puts in place and enforces the regulatory measures, food operators must play their part by adhering to good food hygiene and preparation practices."