( CNN ) A man armed with an assault rifle held his family hostage and shot and killed a Navajo Nation police officer Thursday evening , the Native American tribal government said . The suspect fled , and was shot to death hours later . The slain officer , who was not immediately identified , was one of two Navajo Police officers shot after a domestic violence call came in around 4 p.m. ( 6 p.m . ET ) Thursday , according to a statement from the Navajo Nation . The officers were responding to a report that a man with an AR-15 rifle was holding his family hostage . That same man shot at the Navajo Police , then ran . A manhunt ensued involving officers from the Navajo Nation 's Window Rock and Crownpoint districts . It ended with word around 10:30 p.m. that the suspect was shot to death in the northern Arizona city of Red Valley , just over the border from New Mexico , according to the Navajo Nation government . It was not immediately clear how he died -- whether it was from a shootout with police or a self-inflicted wound . The wounded officer is being treated in the Shiprock-Northern Navajo Medical Center . The officer 's condition was not immediately known . `` We send our condolences to the family of the Navajo Police officer who gave his life in the line of duty , '' Navajo Nation President Ben Shelly said . `` ... The family will be in our prayers . '' The Navajo Nation straddles northeast Arizona , northwest New Mexico and southeast Utah , compassing some 27,000 square miles -- an area larger than West Virginia . Along with a distinctive , centuries-old culture , the autonomous jurisdiction boasts what its website calls `` the largest and most sophisticated form of American Indian government . '' CNN 's Christine Sever contributed to this report .
A man holds his family hostage with an AR-15 , police respond . The man shoots at Navajo Nation officers , killing 1 and wounding 1 . The suspect is shot to death hours later in Red Valley , Arizona .