(Bloomberg) -- German Economy Minister Robert Habeck will trigger the second stage of the country’s three-phase gas-emergency plan later on Thursday, according to a person familiar with the plan.

Habeck warned Wednesday that Europe’s biggest economy should brace for a further cut in Russian gas flows after Moscow last week slashed deliveries on its main pipeline to Europe. He is due to make a statement at 10 a.m. in Berlin.

Germany enacted the initial “early warning” phase at the end of March, when the Kremlin’s demands for payment in rubles prompted Germany to brace for a potential cutoff in supply. The third and highest level involves state control over distribution.

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