Secretary-General Ban Ki-moon prepared a report for the Security Council . The UN said it was "alarmed" by reports of violence in eastern Ukraine and called on all sides to respect Ukraine's territorial integrity. Ban elaborates on an idea to keep observers , but shift their work . Activists say 71 killed .
Secretary-General Ban Ki-moon prepared a report for the Security Council . It outlines possible options for the U.N. mission there . Ban elaborates on an idea to keep observers , but shift their work . Activists say 71 killed .