A Red Cross worker was killed on Saturday in the north of the Central African Republic, amid escalating religious violence that peacekeepers have been powerless to stop. The International Committee of the Red Cross (ICRC) said in a statement armed men entered the Catholic mission in the northern town of Ndele, where four of its staff were based, and killed one of them, a Central African man. The attack came after warnings last week that humanitarian workers were at risk in the former French colony and calls from senior U.N. officials for the international community to deploy more troops. "We are outraged by this killing," said Georgios Georgantas, head of the ICRC delegation in the country.