Anger at Howard University spilled out in protests across campus after allegations surfaced of rape reports in a Howard University residence hall. (WUSA9)

D.C. and Howard University police are investigating a report that a female student was raped by a classmate last month in a campus residence hall, according to the law enforcement authorities.

Police said the woman told detectives the attack occurred Feb. 8 in College Hall South. Police said the woman reported the incident Feb. 29. No arrest has been made and D.C. police said the investigation remains active.

Howard University students on Tuesday protested on the University’s Northwest Washington campus, and briefly shut down 4th Street Northwest, after the woman publicized the incident on the Internet.

Student protesters said the investigation has not been taken seriously and has moved too slowly. Students marched shouting, “No means no.”

Howard University issued a statement saying that administrators “took immediate action as soon as we learned of this matter.” A spokesman declined to comment further citing the ongoing investigation.

Hundreds of Howard University students protested on the campus Tuesday using the hashtag #TakeBackTheNightHU after a woman said that she was raped on campus. (Tori Elder)