The International Atomic Energy Agency’s 35-nation board of governors has passed a resolution calling on Russia to immediately end its occupation of the six-unit Zaporizhzhia nuclear power station, where shelling of the facility and nearby areas in recent weeks heightened fears of a nuclear accident.

Poland and Canada proposed the resolution on behalf of Ukraine, which is not a member of the IAEA’s top decision-making body. It passed with 26 votes. Russia and China voted against it while seven Asian and African countries abstained.

The document adopted a markedly harsher tone than previous statements by officials from the Vienna-based IAEA, who largely limited themselves to calling for a “security zone” around Europe’s largest nuclear station.