European natural gas and power prices reversed a nearly week-long decline on Tuesday as news of potential damage to the Nord Stream 1 (NS1) and Nord Stream 2 (NS2) pipeline networks stoked concern about the future of Russian supply to the continent.

The operator of NS1, Nord Stream AG, detected a drop in pressure late Monday on both strings of the natural gas system. A few hours later, the operator confirmed there were substantial leaks in three different lines, including NS2.

“The destruction that happened within one day at three lines of the Nord Stream pipeline system is unprecedented,” a Nord Stream AG spokesperson said. “It’s impossible now to estimate the timeframe for restoring operations of the gas shipment infrastructure.”

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