An extremist group, calling itself the Shura Council of Mujadeen, asserted Wednesday that its military wing had shot down an Apache Long Bow helicopter. The group posted an internet video Wednesday that, it claimed, showed a US pilot being dragged along the ground, burning, after the crash of his Apache helicopter. The US military said the helicopter went down on Saturday. In a separate announcement, the US military in Baghdad announced Wednesday that it had confirmed that the two pilots in the downed helicopter had died, and said it had recovered "all available remains found on the scene, given the catastrophic nature of the crash." The military statement said that although "reports of a web site video suggest that terrorists removed part of a body from the crash site, the authenticity of the video cannot be confirmed."