AFRICA-SEPTEMBER 5, 2018
Two flight were head on at FL370 ft over southern Kenya at night on 29 August 2018.
An Ethiopian 737 flight ET858 from Johannesburg to Addis, and an Italian leisure airline Neos Boeing 767 flight #NOS252 from Verona to Zanzibar, were head on at the same level of FL370. TCAS RA alerted the crew and allowed the 737 to climb out of danger.
http://newsinflight.com/2018/09/05/ethiopian-boeing-737-and-neos-boeing-767-were-head-on-at-fl370/