President Kabila of DRCongo(L) and Kagame of Rwanda(R)
The accusation came as DR Congo forces resumed heavy fighting against the M23 rebel group, which controls territory close to the Rwandan border in the eastern Kivu region.
Kigali is also accused of backing the rebels, a charge it denies.
General Joseph Nzabamwita, the Rwandan army’s spokesman, said troops across the border had “fired three bombs and small arms fire” at a village in Rubavu district, close to the border towns of Gisenyi in Rwanda and Goma in the DR Congo.
The Congolese army “targeted innocent civilians in Rwanda, and fleeing Congolese refugees,” he said, saying a 58-year-old refugee was wounded.
Rwanda has repeatedly complained that DR Congo government forces fire into its territory, and has described the attacks as a “provocation”.