MH17 investigators delayed again

Members of the Dutch and Australian forensic investigating teams speak on July 28, 2014 in Donetsk, eastern Ukraine, before leaving for the crash site of the Malaysia Airlines flight MH17. Dutch and Australian forensic investigators on their way to the MH17 crash site turned back on July 28 after "explosions" in the area, a government spokeswoman in The Hague said. AFP PHOTO/ BULENT KILICBULENT KILIC/AFP/Getty Images
Members of the Dutch and Australian forensic investigating teams speak on July 28, 2014 in Donetsk, eastern Ukraine, before leaving for the crash site of the Malaysia Airlines flight MH17. Dutch and Australian forensic investigators on their way to the MH17 crash site turned back on July 28 after "explosions" in the area, a government spokeswoman in The Hague said. AFP PHOTO/ BULENT KILICBULENT KILIC/AFP/Getty Images

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    MH17 investigators delayed again

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The Dutch PM has called on the president of Ukraine to "please stop the fighting." CNN's Ivan Watson reports.