The three men, who told authorities they were Spanish nationals, were rescued near the Polish coastal city of Gdansk on Saturday night after their small motorboat broke down and they couldn't return to shore.
They were rescued not far from the Naftoport facility at the Port of Gdansk, which receives tanker shipments of oil and other and petroleum products.
They were also found near an area where there are plans to build a new floating natural gas terminal.
The Maritime Search and Rescue Service SAR told CBS News the rescue operation involved police officers, firefighters, and medical workers.
SAR spokesman Rafal Goeck described the rescue operation — at just before 2 a.m. local time — as "rather unnatural.".
According to Polish media reports, only one of the men had a Spanish passport, while the others offered only verbal identification.
Poland's port of Gdansk, which is vital to the country's energy supplies, sits only about 20 miles from Russia's far-flung, equally strategic western territory of Kaliningrad. »