At the time, the submarine employed 32 women in its 173-person crew. (Representational)

Sailors aboard a US Navy submarine circulated sexually explicit lists that ranked female crew members, an investigation found. The lists, first reported Friday by Military.com, were uncovered through a Freedom of Information Act request.

The 74-page investigative report reveals two lists - one with Yelp-like star ratings on the women and another containing "lewd and sexist comments" beside each woman's name, according to Military.com.

In February 2018, the guided-missile submarine USS Florida became the second to integrate female members. The misconduct came to light four months later, when two sailors aboard the Florida brought the lists to a superior officer, reporting that they were stored on an internal computer network and updated regularly, Military.com reported.

At the time, the submarine employed 32 women in its 173-person crew.

The lists - which Military.com characterizes as "rape lists" - were described as ranking "females by appearances, characteristics and various sexual acts the creators of the list wish to perform with them," including "aggressive sexual activity." The lists do "not reference non-consensual acts," the report said, according to Military.com, noting that a search of submarine networks by commanding officer Capt. Gregory Kercher and a forensic test by the Naval Criminal Investigative Service did not locate either list.

The officers reported the existence of the lists in early June, the outlet reported. By the time the complaint reached Kercher, the investigation alleged, the sexual-assault-prevention point person, an equal-opportunity manager and Kercher's higher-up adviser had already been notified about the lists.

Kercher, who did not respond to The Washington Post's request for comment, did not open a formal investigation or discuss the allegations with his command, according to Military.com. Instead, he purportedly addressed the problem by identifying crew members who were accessing and sharing the lists.

By means that are unclear, Navy officials above Kercher found out about the lists and conducted a formal investigation while the submarine was in the Indian Ocean. The date the investigation began is unknown.

The investigation concluded that "trust up and down the chain of command was nonexistent," according to Military.com.

With rumors swirling, relations among shipmates deteriorated. One woman told Military.com that she began to "question all males on the boat." Another said she felt compelled to send photos of the lists to family members at home; she worried that the chain of command would "sweep it under the rug."

Rear Adm. Jeff Jablon, then-commander of Submarine Group 10, wrote in a letter obtained by Military.com that few crew members knew what, if any, action had been taken by higher-ups.

"Significant numbers of females became concerned for their safety," he wrote, "and male members who learned of the list were equally repulsed," the outlet reports.

As a result of the investigation, Kercher was fired; he had held the position for five months, a tenure during which there were also complaints of high workloads. Jablon said Kercher fell "far short of expected standards and norms for an event of this magnitude."

Two sailors were discharged, and "additional administrative actions were taken" against several others who mishandled the incident, and the investigation concluded that the equal-opportunity reporting process was ineffective, U.S. submarine services spokeswoman Sarah Self-Kyler told Military.com.

In a statement provided to Military.com, Adm. Chas Richard, commander of U.S. Submarine Forces, said: "While I cannot guarantee that an incident such as this will never happen again, I can guarantee that we will continue to enforce our high standards of conduct and character in the Force," adding that anyone who falls short of those expectations would be held accountable.