Within hours after Berenson's arrest, the government launched an all-night siege of the MRTA safe house in an upscale neighborhood in Lima which Berenson had co-rented with an associate. At the end of the siege, three MRTA guerrillas and one police officer had died and 14 guerrillas were captured. The upper floors of the house were found to contain an "arsenal of weapons" and ammunition including 3,000 sticks of dynamite. Diagrams, notes, weapons, and police and military uniforms found at the safe house suggested that the group was planning to seize members of Congress and trade them for captured guerrillas. Police also seized a floor plan and a scale architectural model of the Congress building. After being taken to the house siege, in which Berenson claims she was used as a human shield by the Peruvian police, both women were taken to the DINCOTE ("División Nacional Contra el Terrorismo", or National Counter Terrorist Division).