Fighting between Rwanda-backed rebels and the Congolese army continued for a second day in Goma on Tuesday amid calls by African leaders for an immediate ceasefire.

M23's last occupation of Goma was short-lived, and within a year they were a defeated force. This time, things are different.

Congo's security forces are fighting against Rwanda-backed rebels who advanced into a key eastern city in a major escalation of a decadeslong conflict.