The pilots of a Russian passenger flight that crashed killing 10 people were intoxicated, an inquiry has found.
A forensic study showed the first pilot was lightly intoxicated and his co-pilot moderately intoxicated when their An-28 slammed into a forest on the Kamchatka Peninsula on September 12.
Ten of 14 people on board, including both pilots, were killed.
Investigators said they were looking into who was responsible for letting the pilots board.
Lax government controls, poor crew training and neglect of safety rules have been blamed for a series of deadly crashes in Russia in recent years.
Investigators determined that the pilot of a plane that crashed in June 2011, killing 47, was also intoxicated.