South Sudan, Aug. 5 -- Doctors Without Borders/Medecins Sans Frontieres (MSF) has suspended all operational activities in Yei River and Morobo counties in South Sudan's Central Equatoria State for a minimum of six weeks following the abduction of an MSF staff member, occurring just four days after the abduction of health ministry staff from an MSF ambulance on the same road and location. Fortunately, our colleague was released some hours after the abduction.

The incident occurred on July 29 during an evacuation of MSF staff from Morobo to Yei amid deteriorating security conditions. The four-vehicle convoy was stopped by armed gunmen who ordered the MSF staff member, who was serving as the team leader of the convoy, out of the vehicle and...