COLUMBIA, S.C. — Tobacco companies want a judge to put a stop to new graphic cigarette labels that include the sewn-up corpse of a smoker and pictures of diseased lungs, saying they unfairly urge adults to shun their legal products and will cost millions to produce.

Four of the five largest U.S. tobacco companies sued the federal government Tuesday, saying the warnings violate their free speech rights.

“Never before in the United States have producers of a lawful product been required to use their own packaging and advertising to convey an emotionally-charged government message urging adult consumers to shun their products,” the companies wrote in the lawsuit filed in federal court in Washington.

The companies, led by R.J. Reynolds Tobacco Co., Lorillard Tobacco Co., said the warnings no longer simply convey facts to allow people to make a decision on whether to smoke. They instead force them to put government antismoking advocacy more prominently on their packs than their own brands, the companies say. They want a judge to stop the labels.

The FDA refused to comment, saying the agency does not discuss pending litigation. But when she announced the new labels in June, Health and Human Services Secretary Kathleen Sebelius called them frank and honest warnings about the dangers of smoking.

The FDA approved nine new warnings to rotate on cigarette packs.

One warning label is a picture of a corpse with its chest sewed up and the words: “Smoking can kill you.” Another label has a picture of a healthy pair of lungs beside a yellow and black pair with a warning that smoking causes fatal lung disease.