Story highlights Officials emphasize they could still find cases that warrant charges

A Marines task force will examine the culture that led to the posting of nude photos

(CNN) The US Marine Corps' top general vowed Tuesday to prosecute those found responsible for posting photos of naked female service members on social media.

But he admitted that investigators are having trouble identifying individual users, stopping the spread of spinoff websites linking to the images and determining the proper recourse under the law to punish those responsible.

Testifying before the Senate Armed Services Committee, Gen. Robert Neller strongly condemned those who posted the photos to private Facebook groups like Marines United and other image-sharing message boards without the consent of the subjects.

"We all have to commit to getting rid of this perversion of our culture," Neller said. "We will take action to remove this stain on our Marine Corps."

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Neller called on Marines with information about the lewd photos posted to the 30,000-member Marines United to come forward and help investigators identify specific individuals.

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