At least eight people died in and around Seoul overnight, South Korean authorities said on Tuesday, after torrential rain knocked out power, caused landslides, and left roads and subways submerged.

Russia’s announcement came on the same day U.N. Secretary-General Antonio Guterres called on nuclear-armed countries to abide by the no-first-use commitment of their atomic arsenals amid increasing global tensions that have revived the nuclear arms race.

Pop inger Olivia Newton-John died on Monday at age 73 at her home in Southern California surrounded by family and friends.