Matata Ponyo said that things like greater pay are on the table, but Congo’s territorial integrity is off limits.
‘‘These are borders that were drawn in Berlin in 1885. More than 100 years have passed — no. It’s not negotiable,’’ he said.
Callimachi reported from Dakar, Senegal. Associated Press writer Rodney Muhumuza in Kampala, Uganda and, Africa chief photographer Jerome Delay in Minova and Goma, Congo, contributed to this report.