Ukraine’s president, Volodymyr Zelenskiy, has renewed calls for new sanctions against Russia that would “necessarily block the Russian nuclear industry” and said his forces will target Russian soldiers who shoot at or from Europe’s largest nuclear power station at Zaporizhzhia.

Zelenskiy’s comments came amid warnings by Ukraine that the Kremlin may set up a “false flag” operation to falsely claim Kyiv has directly struck the critical site.

“The presence of Russian military forces at the Zaporizhzhia nuclear power plant prevents the operator and the Ukrainian authorities from fulfilling their nuclear and radiation safety obligations,” they said in a statement.

Zelenskiy said anyone giving orders for attacks on the site or nearby towns and cities should face trial by an international court, as concern about the safety of the nuclear site remained high.