Last week, two more Russian oligarchs were found dead alongside their families within 48 hours of each other in alleged murder-suicides. They’re the latest of a series of high-profile Russians to die in mysterious circumstances in recent months.

It’s not the first time there have been reports about Russian officials dying suspiciously, and Russian President Vladimir Putin has long been known to take extreme measures to silence his opponents.

In the early months of 2022, at least six prominent members of Russia’s upper class have been found dead under strange conditions.