A Christian conservative group has launched a petition asking Congress to stop the U.S. Navy from naming a ship after gay icon Harvey Milk.

According to various reports, U.S. Navy Secretary Ray Mabus plans on naming a fleet oiler the USNS Harvey Milk.

The American Family Association (AFA) is calling on its members to sign a petition calling on Congress to block the Navy's plan.

“I have learned that Secretary of the Navy Ray Mabus is planning to name a military ship after sexual predator and pedophile Harvey Milk,” the petition reads, a reference to Milk's 5-year relationship with Jack McKinley, which started in New York when McKinley was 16. “It is incomprehensible to think that our military leadership has descended to the point that it would even consider naming ships after someone who sought out and took advantage of a minor. Unfortunately, Secretary Mabus has offered such a proposal. As a voter in your district, I urge you in the strongest possible way to get personally involved in stopping Mabus’ plans. Please contact me immediately to let me know that you are as offended by this proposal as I am…and that you are going to take action to stop it.”

Milk, who served aboard a submarine rescue ship during the Korean War, was the first openly gay elected official of a major U.S. city. He won a seat on the San Francisco Board of Supervisors in 1977 on a pledge to back gay and lesbian rights. He was murdered by a disgruntled former supervisor the following year.

Tony Perkins, president of the Family Research Council (FRC), has also criticized the Navy's plan.