Gunmen ambushed and killed security personnel who were on patrol in communities in Nigeria’s Plateau state, according to the state government. It did not specify the number of casualties among the security personnel, which included military officers and local residents, but a local group claimed 20 operatives were killed. For years, Nigeria has been battling a complex security crisis from different armed groups, especially in the northern part of the country. Several thousand people in Nigeria have been killed, according to data from the United Nations. Analysts say not enough is being done by the government to protect its citizens.