Russia Lays Down 6th Kilo-Class Sub for Vietnam

The final Kilo-class Project 636 diesel-electric submarine for the Vietnamese navy under a 2009 contract was laid down Wednesday in St. Petersburg, a defense industry source told RIA Novosti.

"Today, we had the ceremony of laying down the sixth submarine for Vietnam. This is the latest submarine in this series," the source said.

Under the $2 billion contract, two submarines have already been delivered to Vietnam, the third is undergoing sea trials, a fourth was floated out in late March, and the fifth and sixth are now under construction.

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