After February 1948, when the Communists seized power, Pitter and his colleagues began to be persecuted. The Milíč House was transformed into a regular after school club. Pitter emigrated (under the threat of imprisonment) to the Federal Republic of Germany in summer 1951. He started to cooperate with BBC and Radio Free Europe since 1952. For 10 years Přemysl Pitter and Olga Fierz became social workers in the Valka refugee camp near Nuremberg. Since 1962 they lived in Affoltern am Albis, Switzerland. They published an exile magazine Hovory s pisateli (Talks with Writers). Pitter was active in immigrant associations. He died in 1976.