Two explosions recorded under the sea before the gas leak from "Nord Stream"

Two underwater explosions were recorded before three leaks were discovered on the Nord Stream line linking Russia and Europe, the Swedish Seismological Institute said Tuesday, after the leaks raised suspicions of sabotage.

Sweden's national seismological network recorded "two massive energy releases" shortly before the gas leak off and near the Danish island of Bornholm, Peter Schmidt, a seismologist at Uppsala University told AFP.

"This massive release of energy will not be caused by anything other than an explosion," he added.

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