A misaligned
missile battery, miscommunication between troops and their commanders and a decision to
fire without authorization all led to Iran's Revolutionary Guard
shooting down a Ukrainian jetliner in January, killing all 176 people on board, a new report says.
The report released late Saturday by Iran's Civil Aviation Organization comes months after the Jan. 8 crash near Tehran.
Authorities had initially denied responsibility, only changing course days later after Western nations presented extensive evidence that
Iran had shot down the plane.