The Russian Embassy in Berlin has denied any links with the group, while Kremlin spokesman Dmitry Peskov called the arrests an internal issue for Germany.Prime Minister Andrej Plenkovic wrote on Facebook that, with the open borders, Croatia "has fulfilled the strategic goals of the government" and that "citizens and the economy will have the biggest benefit."Croatia's bid received no notable opposition, while the membership of Romania and Bulgaria was opposed by Austria and the Netherlands, citing corruption and migration concerns as increasing numbers of people cross its borders without authorization via the Balkans region.Honor Keleman, Romania’s deputy prime minister, however, was incensed by the result and vowed to "continue to fight" to join Schengen "without giving in to Austria's miserable blackmail," he wrote on Facebook.Shopkeepers, workers, and students in dozens of Iranian cities joined a call to broaden the unrest even further by joining three days of nationwide strikes from December 5 to 7."