United Nations, OSCE call for warring sides to abide by Ukraine ceasefire

U.N. Secretary General Ban Ki-moon has urged Ukrainian government forces and rebel fighters to respect a fragile ceasefire, following the death of a Swiss Red Cross worker in shelling in eastern Ukraine.

The humanitarian worker, named by the International Committee of the Red Cross as 38-year-old Laurent DuPasquier, was killed when a shell landed near the ICRC building in Donetsk city.

Ban said he was "saddened and disturbed" to learn of the death, which came only a day after 10 civilians were killed in the shelling of a Donetsk school, according to the Organization for Security and Cooperation in Europe.

The ceasefire deal was agreed on September 5 in Minsk, Belarus, following talks between representatives of Ukraine's government, Russia and rebel leaders in eastern Ukraine.

Ban called for all sides to strictly adhere to their commitments under the deal and to redouble their efforts toward a lasting peace.