Officials said a preliminary investigation indicated the minibus with the wedding guests swerved into the on-coming lane and hit the truck head-on, RIA Novosti reported.
The accident occurred in the Stravropol region, officials said.
"Only the truck driver survived," police told RIA Novosti. "A man, two women and a 5-year-old child died on the way to the hospital, while six other victims died in the collision."
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