Austria expels three Russian diplomats and cites suspected espionage activity at Russian diplomatic facilities in Vienna. Austrian authorities say equipment installed on the rooftops of diplomatic buildings—described by the foreign minister as an “antenna forest”—is being used for illicit intelligence collection, including signals intelligence. Multiple outlets report that investigators linked the alleged activities to an apparent expansion of Russia’s signals-intelligence capabilities at embassy premises, including satellite-related equipment at the mission in Vienna. Austria’s foreign minister says it is unacceptable to misuse diplomatic immunity for spying. The three expelled officials are said to have already left Austria, with their expulsions announced publicly on Monday. Reporting also indicates that Austria has expelled other Russian diplomats in recent years, placing the current action in a broader pattern of measures by Vienna. The Moscow Times reports that the Russian Embassy rejects the allegations, calling the expulsions politically motivated, and says it plans a retaliatory response.