The M23 militia is ruling over a vast stretch of territory in the eastern part of the Democratic Republic of Congo, threatening the sovereignty of the biggest country in sub-Saharan Africa.

Rwanda-backed rebels battling Congo’s army have pushed into a strategic, mineral-rich town in the east, ignoring calls for a ceasefire this week by the Congolese and Rwandan presidents as the M23 rebel group expands its footprint in the conflict-torn African country.

The head of world cycling said the Road World Championships would go ahead in Rwanda in September, dismissing criticism from human rights groups who accuse Kigali of using sports to burnish its image while backing rebels fighting in neighbouring Congo.