ROZSYPNE, Ukraine (AP) -- Emergency workers, police officers and even off-duty coal miners spread out Friday across the sunflower fields and villages of eastern Ukraine, searching the wreckage of a jetliner shot down as it flew miles above the country's battlefield.

The attack Thursday afternoon killed 298 people from nearly a dozen nations - including vacationers, students and a large contingent of scientists heading to an AIDS conference in Australia.

U.S. intelligence authorities said a surface-to-air missile brought down Malaysia Airlines Flight 17 as it flew from Amsterdam to Kuala Lumpur, but could not say who fired it. The Ukraine government in Kiev, the separatist pro-Russia rebels they are fighting and the Russia government that Ukraine accuses of supporting the rebels all deny shooting the passenger plane down. Moscow also denies backing the rebels.