A Polish court on Friday blocked the extradition to Germany of a Ukrainian man suspected of involvement in the 2022 attack on the Nord Stream gas pipelines and ordered his release, a ruling that was welcomed by Poland’s prime minister. Volodymyr Zhuravlov, 46, was arrested near Warsaw Sept. 30 on a German warrant. German prosecutors have described him as a trained diver and allege that he was part of a group that placed explosives on the pipelines near the Danish island of Bornholm three years ago. The Warsaw District Court rejected his extradition on Friday and ordered his immediate release....