A U.S. Navy reconnaissance aircraft flew near the site of the ruptured Nord Stream 2 pipeline in the Baltic Sea hours after the first damage emerged, according to tracking reviewed by Reuters, a flight Washington said was routine.
Russia's Nord Stream 1 and 2 pipelines burst on Sept. 26, draining gas into the Baltic Sea off the coast of Denmark and Sweden. Seismologists registered explosions in the area, and police in several countries have launched investigations.
Flight data showed a P-8A Poseidon maritime patrol and reconnaissance plane was over the North Sea at 0003 GMT when Swedish seismologists registered what they later described as a subsea blast southeast of Bornholm Island in the Baltic Sea.
The plane, which had flown from Iceland, performed a pattern of regular racetrack-shaped circuits over Poland before breaking away towards the Baltic pipeline area, data showed.
The identity of the plane could not immediately be established because of the type of rotating identification code sometimes used by such planes, but the U.S. Navy confirmed it was an American aircraft when presented with data by Reuters.
"The U.S. Navy P-8A Poseidon aircraft shown in the tracking data conducted a routine Baltic Sea maritime reconnaissance flight, unrelated to the leaks from the Nord Stream pipelines," a U.S. Navy spokesperson said.
Asked if any of the intelligence gathered might help investigators looking into the pipeline ruptures, U.S. Naval Forces Europe-Africa spokesperson, Capt. Tamara Lawrence said: "We do not have any additional information to provide at this time."
It's unclear what role, if any, the U.S. military is playing to aid European investigations into the ruptures of the pipelines, although President Joe Biden has spoken about eventually sending down divers.
'Chess game'
According to the data, several minutes past 0100 GMT the plane flew south of Bornholm heading to northwestern Poland, where it circled for about an hour above land before flying at around 0244 GMT to the area where the gas leak was reported.
It came as close as some 24 kms (15 miles) to the reported leak site, circled once and flew towards the Russian exclave of Kaliningrad, a frequent focus for surveillance, analysts say.
Polish, Swedish, Danish and German ministries of defense were not immediately available for comment.
There is flight data missing between 0339 GMT and 0620 GMT, but on its way back, around 0700 GMT, the plane flew some 4 kms north of the reported leak site.
Reuters used a partial flight map from U.S.-based tracking website Radarbox complemented by data provided to Reuters by Sweden-based Flightradar24 to reconstruct the P-8's path.
Flightradar24 data showed the plane taking off and landing at Reykjanes peninsula in southwestern Iceland, where Keflavik Air Base is located along with reported P-8 hangar facilities.
The data emerged as the Baltic remains a front for Cold War-style tensions in the aftermath of Russia's invasion of Ukraine, according to analysts who caution it is impossible to establish with certainty the reason behind specific military flight paths.
"The Baltic is a very active sphere of confrontation with lots of probing and an endless chess game," said UK-based defense analyst Francis Tusa.
Poland's Prime Minister Mateusz Morawiecki said on Thursday the pipeline burst was "most likely" the work of Russian special services, citing information from Western allies.
Western governments and officials have so far avoided pointing a finger directly at Moscow, while Russia has rejected any allegations of responsibility as "stupid", blaming the United States and its allies instead.
(Reuters - Additional reporting by Gwladys Fouche, Marek Strzelecki, editing by Terje Solsvik and Emelia Sithole-Matarise)
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