Tribratanews.polri.go.id – Surabaya. Chief of East Java Regional Police, Police Inspector General Nico Afinta Karo-Karo, also conducted air patrol for the mitigation of eruption and pyroclastic flow of Semeru mountain. "We will install signs to affirm zone or path with vulnerability levels of eruption disaster", he said on Saturday (11/12/21). Chief of East Java Regional Police, Police Inspector General Nico Afinta Karo-Karo, admitted that safe zones needed to be mapped to ease the evacuation process by the joint SAR team. "The safe zone mapping around the slope of Semeru mountain is needed. There are should also be border signs between safe and vulnerable zones to help personnel