(AP) – Congo military “elements” are responsible for digging at least 42 mass graves in three Kasai provinces after clashes with alleged militia members in recent months, the United Nations said as experts were appointed Wednesday to look into a growing crisis that has killed hundreds and displaced more than a million people. Human rights have deteriorated alarmingly due to the “brutal and disproportionate repression against the Kamuina Nsapu militia by the Congolese defense forces,” the U.N. Joint Human Rights Office in Congo said in a new report.