Someone's been doing a good series on the recent loss of a Mi-26 helicopter near the British base in Sangin, a civilian machine chartered in to carry supplies around Helmand. The aircraft was ER-MCV, and it apparently belonged to Pecotox Air, an old and fairly dodgy charter operator from Moldova; however, it was apparently wearing Artic Group titles. That's Artic as in the possible owner of some of Jet Line International's planes. Apparently SkyLink Aviation is involved as well.
It's also probably significant that it was shot down with a "grenade launcher", i.e. an RPG, which suggests that the enemy were very close to whereever it was departing from, and that it wouldn't have helped much had they had a full defensive-aids suite.