Three sushi takeaways that were being operated from the bedroom of a house in Dublin, where extensive rodent activity was found, have been closed down by the Food Safety Authority of Ireland.

The three takeaways were unregistered and operating online from a house on Shanvarna Road in Santry.

The takeaways in question were Koi Sushi, Nagoya Sushi and Kyoto Sushi.

The FSAI said not only were there breaches of food safety controls, there was evidence of extensive rodent activity "throughout food preparation and storage areas; rodent droppings and gnawed foodstuffs all posing a serious risk of contamination to food and consumers".

A live rodent was also seen during the inspection.

The FSAI said food was being "produced, processed and distributed in an unsatisfactory and unclean environment" and there was also an "absence of safe practice when handling raw fish and cooked rice".

Two other food outlets in Co Cork, TFS Wholesale, Unit 6 & 7 Colomane, Bantry, and Speedos (Restaurant/ Café), 8 Tuckey Street, Cork City, were also closed by the FSAI in October.

FSAI Chief Executive Dr Pamela Byrne expressed concern that this month's "Enforcement Orders included three closure orders in relation to individuals running online unregistered and unsupervised food businesses selling a range of sushi products from the bedroom of a house".

She said such businesses pose a serious risk to consumer health.

Dr Byrne added: "Sushi is a very high-risk product because it contains raw fish which must be kept chilled to reduce the growth of dangerous bacteria.

"It can also contain cooked rice, which is a ready-to-eat product that must be kept chilled.

"In these instances, the absence of a food safety management system, no monitoring of the cold chain and no evidence of traceability of raw ingredients posed a grave and immediate danger to consumer health."