“Violence in Yumbi, in the DRC province of Mai-Ndombe, prompted an exodus to the neighbouring Republic of Congo, also known as Congo-Brazzaville, the UN’s refugee agency said.”

https://www.theeastafrican.co.ke/news/africa/DR-Congo-violence-drives-16000-into-Brazzaville/4552902-4921716-23932r/index.html