Sales of emergency supplies spike following government advisory

• Sales of torches and power banks more than doubled since the government's advisory.
• Retailers report a rise in sales of radios and tinned foods.
• Figures obtained by BBC Newsnight show large spikes in sales of torches, radios, and power banks.
• The government's call to stock up has led to increased consumer purchases of emergency supplies.
• The surge in sales is a direct response to the government's advisory to prepare for potential crises.