Azerbaijan shot down an Armenian helicopter that it said violated its airspace in an attack that may trigger fresh confrontations between the two countries over a disputed region.
The Mi-24 helicopter was “trying to attack” Azeri positions near a cease-fire line when it was hit, the Defense Ministry in Baku said on its website. Armenia’s Defense Ministry said the aircraft was unarmed and called its downing an “unprecedented provocation.”
“This is the worst military incident in more than 20 years since the cease-fire,” Thomas de Waal, senior associate at the Carnegie Endowment for International Peace, said
http://aviation-safety.net/wikibase/wiki.php?id=171197
Further details:
http://azeridaily.com/reality/2361