According to the Overseas Development Institute, international NGOs face challenges in carrying out their mission, leaving their assistance "piecemeal and largely conducted undercover, hindered by insecurity, a lack of coordinated funding, limited operational capacity and patchy information". International NGOs have been targeted and during the first 5 years, 94 aid workers were killed, 248 injured, 24 arrested or detained and 89 kidnapped or abducted.