(CNN) The last missing victim of the Conception dive boat fire in California was located Wednesday, the Santa Barbara County Sheriff's Office said.

"The Conception Incident Unified Command is relieved to report that search and recovery efforts today were successful in locating the last missing victim," a tweet from the sheriff's office said.

DNA testing is being conducted to confirm the identifies of seven of the 34 victims recovered, they added.

The 75-foot dive boat sank off the Southern California coast on Labor Day following a fire that claimed the lives of 34 people on board.

Of the 39 people who were aboard the boat that weekend, only five crew members were found alive. The others, who were in the lower sleeping deck, likely got trapped when the fire blocked their escape, authorities have said.

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