WASHINGTON (Reuters) - A U.S. judge sided with tobacco companies on Wednesday, ruling that regulations requiring large graphic health warnings on cigarette packaging and advertising violate free-speech rights under the U.S. Constitution.

Cigarette makers challenged the U.S. Food and Drug Administration's rule requiring companies to label tobacco products with images of rotting teeth, diseased lungs and other images intended to illustrate the dangers of smoking.

"The government has failed to carry both its burden of demonstrating a compelling interest and its burden of demonstrating that the rule is narrowly tailored to achieve a constitutionally permissible form of compelled commercial speech," U.S. District Judge Richard Leon said in the ruling.

The judge granted a preliminary injunction last year blocking the new label requirement from taking effect in 2012, a decision the Obama administration has already taken to the U.S. Court of Appeals for the District of Columbia Circuit.

The government is also likely to appeal the new ruling.

While educating the public about the dangers of smoking "might be compelling, an interest in simply advocating that the public not purchase a legal product is not," Leon wrote in a 19-page ruling.

Further, Leon noted the warning labels were too big to pass constitutional muster and that the government has numerous other tools at its disposal to deter smoking such as raising cigarette taxes or including simple factual information on the labels rather than gruesome images.

Congress passed a law in 2009 ordering the FDA to adopt the label regulation, which requires color warning labels big enough to cover the top 50 percent of a cigarette pack's front and back panels, and the top 20 percent of print advertisements.

The FDA released nine new warnings in June to go into effect in September 2012, the first change in U.S. cigarette warning labels in 25 years. Cigarette packs already carry text warnings from the U.S. Surgeon General.

Tobacco companies, including Reynolds American Inc's R.J. Reynolds unit, Lorillard Inc, Liggett Group LLC, Commonwealth Brands Inc, which is owned by Britain's Imperial Tobacco Group Plc, and Santa Fe Natural Tobacco Co Inc challenged the rule, arguing it would force them to engage in anti-smoking advocacy against their own legal products.

"Unfortunately, because Congress did not consider the First Amendment implications of this legislation, it did not concern itself with how the regulations could be narrowly tailored to avoid unintentionally compelling commercial speech," Leon wrote.

A spokesman for the Justice Department, which represented the FDA in the case, had no comment. Representatives for the tobacco companies involved in the litigation were not immediately available for comment.

Tobacco companies have said it would cost them millions of dollars to comply and also argued the graphics offer no information that could not be accomplished through messages similar to warnings already on cigarette packages and ads.

The Centers for Disease Control and Prevention estimates some 45 million adults smoke cigarettes, which are the leading cause of preventable deaths in the United States.

The ruling "ignores decades of First Amendment precedent that support the right of the government to require strong warning labels to protect the public health," Matthew Myers, president of the Campaign for Tobacco-Free Kids said in a statement.

The case is R.J. Reynolds Tobacco Co et al v. FDA, U.S. District Court for the District of Columbia, No. 11-1482.

(Reporting By Jeremy Pelofsky; editing by Matthew Lewis and Andre Grenon)

CHARDON, Ohio — Officials say four students were wounded in a shooting at their high school outside Cleveland and one person is in custody.

FBI agent Scott Wilson said after Monday morning’s shooting that there was one suspected shooter. He wouldn’t discuss the extent of the students’ injuries.

The shooting was reported around 7:30 a.m. Monday at Chardon High School.

Chardon is about 30 miles east of Cleveland.

Gunfire at a high school outside Cleveland injured a number of students Monday morning, and at least one suspect has been taken into custody, officials said.

The shooting was reported around 7:30 a.m. at the 1,100-student Chardon High School about 30 miles east of Cleveland, said Civil Deputy Erin Knife of the Geauga County Sheriff’s Office. She didn’t know the number of victims, but multiple news reports cited four students shot.

Television news footage showed anxious parents escorting children away from a school building, and ambulances could be seen outside.

Superintendent Joseph Bergant II told television station WKYC that the culprit is in custody. He said he didn’t know the extent of the students’ injuries.

A spokeswoman for Cleveland’s MetroHealth System said a medical helicopter was dispatched to the high school. Schools in the area were locked down.

Bob Herp, a Chardon trauma nurse, was at a command scene at a local Wal-Mart store where he said helicopters were on the ground.

Chardon is a city of about 5,100 residents.

Copyright 2012 The Associated Press. All rights reserved.