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The central government on Sunday issued an “electricity supply shortage warning” for the first time ever under a new system, saying that the Tokyo area was expected to suffer a shortage Monday afternoon as temperatures in the Kanto region were likely to remain high.

The government asked people to make efforts to save electricity, particularly between 3 p.m. and 6 p.m. Monday, including switching off unnecessary lights while also taking measures to prevent heatstroke.

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