State news : Rebels capture 16 wounded Ukrainian soldiers at Donetsk 's airport . 16 civilians reported killed in shelling in Ukraine city , seven of them at a bus stop . The Organization for Security and Cooperation in Europe , which has a monitoring mission in Ukraine , is among those trying to get to the bottom of it all . Donetsk 's Defense Ministry blames Ukrainian rebels ; Ukraine demands an investigation .
State news : Rebels capture 16 wounded Ukrainian soldiers at Donetsk 's airport . 16 civilians reported killed in shelling in Ukraine city , seven of them at a bus stop . Donetsk 's Defense Ministry blames Ukrainian rebels ; Ukraine demands an investigation .