source: Radio Tamazuj
actor1: Unidentified Armed Group (South Sudan)
actor2: Civilians (South Sudan)
location: Buno (Narukeny payam)
notes: On May 21st, unknown gunmen fired upon a convoy of vehicles belonging to a demining NGO at Nanak-nak bridge on the way to Buno (Eastern Equatoria, coordinates used at precision 2), wounding two staff members.