supply

A series of "cascading overvoltages" - an increase in the electrical supply voltage above the established norm - was behind the outage, it concluded.

Earlier this year, M&S and the Co-Op were both hit by cybersecurity breaches that disrupted supply chains and customer orders, and accessed the data of shoppers.

"Most roads are now passable so supplies are now coming in from the city. But immediate supplies like water and food, especially for the children are not yet available," he tells the BBC.

“However, his claims that he had been shot and abducted were quickly disproven. We then learned that he had purchased a bicycle, tent and camping supplies just prior to him reporting this.”

The firm - which is one of Japan's largest convenience stores - said its Famimaru range of bottled teas, which are made by Asahi, are expected to be in short supply or out of stock.