(Reuters) - A committee of the U.N. General Assembly expressed serious concern on Monday over violence in Myanmar between Rohingya Muslims and Buddhists and called upon the government to address reports of human rights abuses by some authorities. The 193-nation General Assembly's Third Committee, which focuses on rights issues, approved by consensus a non-binding resolution, which Myanmar said contained a "litany of sweeping allegations, accuracies of which have yet to be verified."