British security officials say they have "credible information" that pro-Russian rebels tampered with the crash scene of Malaysian Flight 17 - planting parts from other aircraft at the site in an attempt to foil investigators and push blame for the disaster on Ukrainian forces.
Murder In The Sky: Malaysia Airlines Flight MH17
New York Post: Evidence mounts of pro-Russian rebels altering MH17 crash site
A part of the downed Malaysia Airlines flight MH17 is pictured in a field near the village of Grabove, in the Donetsk region, on July 23, 2014.