The Russian president denounced the silence in Western countries about a derailed plot to overthrow the Belarusian government.
"Just nobody seemed to notice this. Everyone pretends that nothing is happening at all," Putin fumed.
Two people from the Belarusian opposition were detained by the Russian internal security agency FSB due to an attempted coup against President Alexander Lukashenko, the organisation said on Saturday.
Lukashenko also said that Belarusian security services have detained a group of people for trying to assassinate him and his family who were backed by the US. The US Department of State denied the accusation as "untrue".
Speaking about the attempted plot, Russia's president said that "the world, unfortunately, seems to have become accustomed to the practice of politically motivated illegal economic sanctions", adding that this is "degenerating into something much more dangerous now".
"The practice of organising coups and attempts to organise assassinations of heads of state is just too much. All boundaries have been crossed," Putin said.