• Gazprom is cutting flows to Europe again, Reuters first reported.
• Russia's state-run supplier is lowering its Nord Stream capacity to 40%.
• The reduction comes as buyers try to bulk up reserves for winter.

Gazprom said Thursday it was further cutting gas flows to Europe citing more technical issues with its Nord Stream pipeline, Reuters first reported. 

Russia's state-run supplier's latest reduction, the second in just two days, edges the Nord Stream's pipeline's capacity down by 40%. The move comes as European countries try to bulk up gas storage in anticipation of winter. European stores are currently 56% full, Reuters said. 

Gazprom said issues with a gas compressor lead to the initial reduction. The company said that a delay in equipment sent to Canada for repairs is to blame for Thursday's reduction in flows, a claim that Germany disputes as a reason to push gas prices higher.

European natural gas prices climbed as much as 30% Thursday morning on the news. Norway, Europe's second-largest supplier behind Russia, has increased exports to make up for a curb in Russian gas in light of the Kremlin's invasion of Ukraine. The EU pledged to be 90% rid of Russian supply by the end of 2022, and fully exit from Moscow-sourced fossil fuels by 2027. 

The EU has also turned to liquefied natural gas to make up for supply shortcomings in light of its sanctions against Russia, although a fire in Texas last week at a key export hub lowered supply expectations.