The leader of a rebel alliance that has seized swathes of east Congo told Reuters on Thursday that insurgents were not bound by a ceasefire call from Congo and Rwanda's presidents and cast any minerals-for-security deal with the U.

After talks in Qatar, the two countries’ presidents said they were committed to an unconditional truce between Congo’s army and a rebel group that Rwanda denies backing.

Rwanda-backed M23 rebels entered the strategic town of Walikale in eastern Congo late Wednesday, according to residents and civil society leaders, a day after the Congolese and Rwandan presidents called for an immediate ceasefire.