Iranian TV shows downed US drone
8 December 2011 Last updated at 16:53 GMT
Iranian TV has broadcast footage of an advanced US drone aircraft that Tehran says it brought down using electronic methods to override its controls.
The BBC's James Reynolds watched the footage and said the fact that the drone appeared undamaged provided some evidence to support Tehran's version of events.
The film was captioned "RQ170 - advanced US spy plane" and carried on the Vision of the Islamic Republic of Iran Network 1 channel.