Rwanda has accused Belgium of repeatedly undermining Rwanda over the M23 offensive in Congo.Belgium and Rwanda are expelling each other's diplomats in tit-for-tat moves as part of an escalating dispute over the conflict in the eastern Democratic Republic of Congo.

Belgium, Rwanda’s former colonial ruler, pushed for the European Union to impose sanction against Rwandan officials over their role in invading eastern Congo and plundering its mineral wealth.

The Rwanda-backed M23 armed group swept through the mineral-rich east of the DRC earlier this year, taking two major cities, with thousands killed and millions displaced.