In Catalonia, now controlled by troops under the Command of Communist General Sebastián Pozas and newly appointed Barcelona chief of Police Ricardo Burillo, the CNT independent police patrols were dissolved and disarmed. Furthermore, the CNT were completely removed from their positions at the Franco-Spanish border posts. Another major blow to the CNT was the dissolution of countless revolutionary committees throughout Catalonia by the army and assault guards. When a new cabinet was formed by President Companys, the CNT decided not to participate. In the months that followed, the Communists carried out a campaign of arrests, tortures and assassinations against the CNT. The imprisonment of many Anarchists caused a wave of dissent in working class quarters. Meanwhile, the Communists working with Soviet agents seized most of the POUM leadership along with many of its members. The POUM secretary Andrés Nin was also arrested, sent to a secret prison in Alcalá de Henares and eventually murdered. Nin's disappearance, and the repression of the POUM, caused an international outcry from various left wing organizations and further deepened the divisions within the Republic.