Sexual assault survivors dressed in denim rallied on the steps of City Hall Wednesday to call for an end to sexual violence.

City officials joined advocates as part of Denim Day NYC. The rally, which commemorates Sexual Assault Awareness Month, focused on ending college campus sexual assaults.

Police Commissioner William Bratton was the keynote speaker at the event. He said the department is partnering with schools to encourage students to report sexual assault, but said more needs to be done,

"We are all, in the leadership positions in government here, committed to this issue," Bratton said. "None of us are missing in action when it comes to this critical issue that has to be addressed."

"We need to stop making excuses for assaults, and we need to create a framework to end sexual assaults in colleges and communities all across the country," said Public Advocate Letitia James.

Advocates say 1 in 5 women report that they're a survivor of rape or attempted rape by the time they leave college.