Explosions at a rally held by M23 rebels in the eastern Democratic Republic of Congo city of Bukavu killed 11 people and wounded 65 others, Corneille Nangaa, head of the rebel alliance that includes M23,

The rebels have been advancing through eastern DR Congo since January, seizing Bukavu and Goma, the biggest city in the region. The fighting has forced about 500,000 people from their homes, worsening an already dire humanitarian crisis, according to the UN.

Dozens of people were reportedly injured Thursday after an explosion at a meeting of M23 rebel group leaders and residents in eastern Congo. Video and photos shared on social media on Thursday show a crowd fleeing the meeting in Bukavu in panic and bloodied bodies on the ground.

Democratic Republic of Congo's government and Rwandan-backed M23 rebels traded blame on Friday for several explosions at a rally in the rebel-held eastern city of Bukavu that killed 13 people and wounded scores of others the previous day.

Explosions killed 11 people and wounded 65 at a rally held by M23 rebels in the eastern Congo city of Bukavu on Thursday, the leader of the rebel alliance said, blaming President Felix Tshisekedi for the violence.