Sources told CNN that the US Navy is considering analyzing underwater audio recordings that were captured when the natural-gas pipes between Russia and Europe were damaged.

European leaders blamed an act of sabotage for the four severe leaks that were discovered last week. The section of the pipes that were damaged are 50 meters below the surface.

Natural-gas erupted like geysers from the Baltic Sea as a result of the damage from the incident.

The European Space Agency says that it's difficult to look at satellite images taken at the time of the event. The sources told CNN that underwater audio of the explosions could provide important information.

Two people with knowledge of the matter tell CNN that the US has advanced technology to process underwater sounds. They said that the technology could give more information about how the damage was done and what happened in the surrounding area.

The US may be able to contribute to the investigation if the sound of the recordings is good.

The Navy wouldn't confirm to CNN that the US had offered to look into the audio recordings, but it did say that it was prepared to help the investigations.

The Navy didn't reply immediately.

The magnitude of the explosions was measured at 2.3 and 2.1 on the Richter Scale, which is equivalent to an explosives load of several hundred kilomes.

Some German legislators pointed the finger at Russia for the incident. The claims that Moscow was involved in sabotage were ridiculous, according to the Kremlin.