The flow of electricity between the Baltic countries of Estonia, Latvia and Lithuania and Russia was officially severed Saturday morning after officials switched off the Soviet-era grid’s transmission lines and prepared to join the rest of Europe on Sunday.

The Baltic states of Estonia, Latvia and Lithuania completed a switch from Russia's electricity grid to the EU's system on Sunday, severing Soviet-era ties amid heightened security after the suspected sabotage of several subsea cables and pipelines.

The three Baltic states successfully connected to the European power grid Sunday after severing Soviet-era links with Russia's network, a shift that EU chief Ursula von der Leyen hailed as "freedom from threats and blackmail".