A member of the Zurich group, a Lett, was arrested in Stockholm, and Olga Ravich, a member of the Geneva group, who had recently returned from Russia, was arrested in Munich with Bogdassarian and Khojamirian.
Salah satu anggota kelompok Zürich yang berasal dari Latvia ditangkap di Stockholm, dan Olga Ravich, seorang anggota kelompok Jenewa yang baru saja kembali dari Rusia, ditangkap di München dengan Bogdassarian dan Khojamirian.