Representatives of M23 now appear enthusiastic about achieving a negotiated peace regardless of U.N. plans for eastern Congo.
The global body is launching its biggest humanitarian appeal ever, asking donor countries for $5.2 billion.
Talks collapsed nearly five years ago over construction of Jewish settlements in captured areas.
U.N. refugee agency says majority fleeing from Jonglei state to Ethiopia.
Latest eruption of violence rattling the country leaves 30 dead, dozens hurt.
Prosecutors had demanded life sentences for the two men acquitted.
Foreign Minister's hard line makes it nearly impossible for the opposition to agree to U.N.-sponsored peace talks.
Sanctions have halted money transfers by foreign humanitarian groups working to help those in need.
New international sanctions aimed at thwarting N.Korea's nuclear weapons program are also halting money transfers by foreign humanitarian groups.
The killing of a polio worker has forced authorities to halt the program.
