 Meanwhile, from the island of El Frontón the vice-minister of the Interior, Agustín Mantilla, announced that the island was under the control of the Joint Command of the Armed Forces as it had been declared a restricted military zone.Later, the Navy, with Naval Infantry support, attacked the "Blue Ward" of El Frontón, which was where Shining Path guerrilla members were imprisoned.During the assault three members of the Peruvian Armed Forces, one of the hostages, and 135 prisoners were killed.