The leader of Rwandan-backed M23 rebels in eastern Congo said on Thursday that a call by Kinshasa and Kigali for an immediate ceasefire "doesn't concern us" as his forces pushed deeper into Congolese territory by capturing the strategic town of Walikale.

GOMA (Reuters) - The leader of the rebel alliance that has seized swathes of east Congo told Reuters on Thursday that the group was not bound by a ceasefire call issued during a surprise meeting in Qatar between the presidents of Democratic Republic of Congo and Rwanda.

The Democratic Republic of Congo government has offered a reward of $5m (£4m) for help arresting three leaders of a rebel group which has seized much of the east of the country this year.