UNITED NATIONS (Reuters) – 4 Russians were killed when a U.N.-reduced in size cargo helicopter crashed in japanese Democratic Republic of Congo, U.N. Secretary-General Ban Ki-moon mentioned on Tuesday. The helicopter crashed on Saturday on a thickly wooded mountainside round 20 km (12 miles) west of Bukavu airport. Russia’s International Ministry stated it used to be an Mi-eight helicopter owned via UTair and blamed the crash on adverse weather prerequisites. A U.N. rescue workforce used to be best in a position to reach the crash site on Tuesday. …