Civilians in eastern Democratic Republic of Congo are fleeing their homes near Goma, amid fears that the M23 rebel group are advancing.
There are reports that the Congolese army has been fighting the militia near the town of Sake.
Tens of thousands of people have been displaced in recent months after the Tutsi-led rebels launched an offensive.
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Ten years ago the same group was chased out of eastern DR Congo into Uganda and Rwanda.
Rwanda’s government has been accused of supporting the M23, but it denies it.
Rwanda has for many years criticised the Congolese authorities for failing to disarm Hutu rebels – some of whom were linked to the Rwandan genocide.