 The earthquake caused major damage in Port @-@ au @-@ Prince , Jacmel and other settlements in the region . Notable landmark buildings were significantly damaged or destroyed , including the Presidential Palace , the National Assembly building , the Port @-@ au @-@ Prince Cathedral , and the main jail . Among those killed were Archbishop of Port @-@ au @-@ Prince Joseph Serge <unk> , and opposition leader <unk> Gaillard . The headquarters of the United Nations Stabilization Mission in Haiti ( MINUSTAH ) , located in the capital , collapsed , killing many , including the Mission 's Chief , <unk> <unk> . 
