In this framegrab image from Ru-RTR Russian state channel, smoke rises from a dock where the Yekaterinburg nuclear submarine is for repairs at the Roslyakovo shipyard in the Murmansk region, Russia, Thursday, Dec. 29, 2011. A massive fire engulfed a Russian nuclear submarine at an Arctic shipyard Thursday, but there has been no radiation leak, or injuries, officials said. The fire at the Yekaterinburg nuclear submarine occurred while it was in dock for repairs at the Roslyakovo shipyard. The Yekaterinburg is a Delta-IV-class nuclear-powered submarine that normally carries 16 nuclear-tipped intercontinental ballistic missiles. Defense Ministry spokesman Igor Konashenkov told The Associated Press that all weapons had been unloaded from the sub and its reactor had been shutdown to safety before the repairs. (AP Photo/Ru-RTR Russian state channel)