Russian officials say 15 soldiers were killed when a helicopter crashed in Chechnya.
The Interfax news agency says investigators suspect the helicopter flew into electric power lines near the Chechen capital of Grozny when it went down Thursday.
The helicopter had been carrying border guards into Russia's main army base of Khankala just outside of Grozny.
The crash initially raised suspicions that Chechen separatists played a role in the tragedy. Russian troops killed rebel leader Aslan Maskhadov earlier this week.
One soldier survived the M-i-8 helicopter crash but was seriously wounded.
Some information for this report provided by AP, AFP and Reuters.