With Russia’s invasion of Ukraine and the specter of nuclear weapon use, Earth crept its closest to Armageddon, a science-oriented advocacy group said, moving its famous “Doomsday Clock” up to just 90 seconds before midnight.

“We are really closer to that doomsday,” former Mongolian President Ts.Elbegdorj said Tuesday at the Bulletin of Atomic Scientists’ annual announcement rating how close humanity is from doing itself in. He and former Ireland President Mary Robinson joined scientists to underscore what they consider a gathering of several existential threats, with Russian President Vladimir Putin’s actions and words chief among them.

“People and scientists are warning us and we have to wake up now,” Ts.Elbegdorj said.

“We are sending a message that the situation is becoming more urgent,” Bulletin President Rachel Bronson said at the online announcement. “Crises are more likely to happen and have broader consequences and longer standing effects.”

And to emphasize the effect that Russia’s invasion of Ukraine had on moving closer to theoretical doomsday, the group said it was also announcing the clock movement in the Russian and Ukrainian languages for the first time.

It’s been as much as 17 minutes from midnight after the end of the Cold War, but in the past few years, the group has changed from counting down the minutes to midnight to counting down the seconds.