The video shows two cars of the OSCE Special Monitoring Mission a few seconds before the explosion. Then the camera starts shaking, defocus and shows thick black smoke.
According to the correspondent for Radio Svoboda Christopher Miller, the editorial board obtained this footage from a "source on the government controlled part of Ukraine."
He says that the road where the explosion occurred is rarely used by civilians because of its proximity to the contact line. However the full video shows a third unidentified car heading towards the explosion by the same road 9 minutes later.
As reported, a United States national was killed in OSCE SUV blast April 23 near the village of Pryshyb in the militants-held territory of Ukraine's eastern Luhansk region. Two more monitors, nationals of Germany and the Czech Republic, were injured. The U.S. State Department said the tragedy "was inexcusable" and promised to punish the guilty.