The top US Marine on Tuesday addressed the investigation into Corps members sharing nude photos of female Marines without their consent.

Male service members have been accused of sharing the images along with death threats and racist memes in a so-called "private" Facebook group of more than 30,000 members. Last week, the Center for Investigative Reporting revealed that more than two dozen women on active duty have been identified by their full name and military duty station in photographs posted on the Facebook page.

“The Marine Corps I have served for over 40 years has a problem,” General Robert Neller told the Senate Armed Services Committee on Tuesday.

The general asked each of the 15,000 active-duty female Marines to trust him while he leads the investigation into the scandal. “I know what you do for our Corps, for our team and to contribute,” he said, he then addressed the Male service members. “I need you to ask yourself how much more do the females of our Corps have to do to be accepted.”

But some members of the Senate Armed Services Committee criticised the general’s testimony, the Associated Press reports, saying more needs to be done enough to combat sexual assault and harassment amid years of complaints.

"This committee has heard these kinds of statements before," Senator Jeanne Shaheen, a Democrat from New Hampshire, said at the hearing. "It's hard to believe something is really going to be done. Why should we believe it's going to be different this time than it has in the past?"

Thousands attend Women's March on Washington Show all 18 1 /18 Thousands attend Women's March on Washington Thousands attend Women's March on Washington Protesters gather outside the White House at the finish of the Women's March on Washington on January 21, 2017 in Washington, DC. Large crowds attended the anti-Trump rally a day after U.S. President Donald Trump was sworn in as the 45th U.S. president. Getty Thousands attend Women's March on Washington Protesters hold up signage near the Washington Monument during the Women's March on Washington January 21, 2017 in Washington, DC. Large crowds are attending the anti-Trump rally a day after U.S. President Donald Trump was sworn in as the 45th U.S. president. Drew Angerer/Getty Thousands attend Women's March on Washington Protesters gather during the Women's March on Washington January 21, 2017 in Washington, DC. The march is expected to draw thousands from across the country to protest newly inaugurated President Donald Trump. 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Following the inauguration of Donald Trump as the 45th president of the United States, the Women's March has spread to be a global march calling on all concerned citizens to stand up for equality, diversity and inclusion and for women's rights to be recognised around the world as human rights. Jessica Kourkounis/Getty Thousands attend Women's March on Washington Demonstrators protest during the Women's March along Pennsylvania Avenue January 21, 2017 in Washington, DC. Hundreds of thousands of protesters spearheaded by women's rights groups demonstrated across the US to send a defiant message to US President Donald Trump. Joshua Lott/AFP/Getty Images Thousands attend Women's March on Washington WASHINGTON, DC - JANUARY 21: Protesters attend the Women's March on Washington on January 21, 2017 in Washington, DC. Following the inauguration of Donald Trump as the 45th president of the United States, the Women's March has spread to be a global march calling on all concerned citizens to stand up for equality, diversity and inclusion and for women's rights to be recognised around the world as human rights. Jessica Kourkounis/Getty Thousands attend Women's March on Washington A marcher holds a sign during the Women's March on Washington January 21, 2017 in Washington, DC. The march is expected to draw thousands from across the country to protest newly inaugurated President Donald Trump. Aaron P. Bernstein/Getty Thousands attend Women's March on Washington A woman chants while attending the Women's March on Washington on January 21, 2017 in Washington, DC. Large crowds are attending the anti-Trump rally a day after U.S. President Donald Trump was sworn in as the 45th U.S. president. 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Drew Angerer/Getty Thousands attend Women's March on Washington A protester, holding a Donald Trump doll wearing a pink cap, marches in Washington, DC, during the Womens March on January 21, 2017. Hundreds of thousands of people flooded US cities Saturday in a day of women's rights protests to mark President Donald Trump's first full day in office. Robyn Beck/AFP/Getty Images Thousands attend Women's March on Washington Protesters take to the National Mall to demonstrate against the presidency of Donald Trump Washington, DC on January 21, 2017. Hundreds of thousands of protesters spearheaded by women's rights groups demonstrated across the US to send a defiant message to US President Donald Trump. Dominick Reuter/AFP/Getty Images Thousands attend Women's March on Washington Protesters march during the Women's March on Washington on January 21, 2017 in Washington, DC. Large crowds are attending the anti-Trump rally a day after U.S. President Donald Trump was sworn in as the 45th U.S. president. Mario Tama/Getty Thousands attend Women's March on Washington Demonstrators gather on The Ellipse during the Women's March on Washington January 21, 2017 in Washington, DC. Hundreds of thousands of protesters spearheaded by women's rights groups demonstrated across the US to send a defiant message to US President Donald Trump. Zach Gibson/AFP/Getty Images Thousands attend Women's March on Washington Demonstrators march down Pennsylvania Avenue during the Women's March on Washington January 21, 2017 in Washington, DC. Hundreds of thousands of protesters spearheaded by women's rights groups demonstrated across the US to send a defiant message to US President Donald Trump. 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Senator Kirsten Gillibrand, a New York Democrat, echoed her colleague's concerns.

"When you say to us it's got to be different, that rings hollow," she said. "If we can't crack Facebook, how are we supposed to be able to confront Russian aggression and cyber-hacking throughout our military? It is a serious problem when we have members of our military denigrating female Marines who will give their life for this country in the way they have with no response from leadership."

The acting Navy secretary, Sean Stackley, said the Naval Criminal Investigative Service is investigating the incident and that its tip line has received more than 50 complaints.

"This is a bell-ringer," he said, according to the AP. "We're not going to go backwards."

In the past, lawmakers have said that strengthening “revenge pornography" laws would be illegal under the Uniform Code of Military Justice.

CNN obtained one of the messages shared in the Marines United Facebook group, an anonymous member taunted the investigation: