An 18-year-old student was raped after attending a fraternity party, UC Berkeley police said Wednesday.

An 18-year-old student has said she was raped after attending a fraternity party over the weekend, UC Berkeley police said Wednesday.

The woman made her report to police early Monday morning, about 48 hours after the incident occurred in a dorm room at the Unit 1 residence hall at 2650 Durant Ave.

The University of California Police Department said the young woman met the person who raped her “at a fraternity party,” but no additional information was released. The rape happened later at the residence hall, at about 2 a.m. Saturday.

UCPD detectives are investigating the case, authorities said. There is no suspect description at this time.

Police ask anyone with information about the incident to call UCPD at 510-642-6760.

In the past six months, UCPD has received 22 sex crime reports, though they are not broken down by type, according to CrimeMapping.com, a repository for police data. The Berkeley Police Department received 51 reports, though, again, there is are a range of crimes that fall under the sexual assault umbrella. The BPD data indicates that 29 of its sex crimes were felonies.

The 2017 annual crime and safety report published by the university said UC Berkeley received 33 rape reports on campus in 2016, including 21 in campus housing, and another nine off campus.

The 2015, there were 16 on campus rape reports, including 10 in student housing, and 14 off campus.

In 2014, there were 15 on campus, including 12 in student housing, and another 23 off campus.

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In addition to rape, other types of sex offenses listed in the report, and tracked, are fondling, incest and statutory rape.

UCPD shared the following safety tips:

Rape and sexual assault are never the fault of the survivor. It is the behavior of the perpetrator that is wrong.

80% of sexual assault and rapes are perpetrated by someone known to the survivor, and on college campuses 90% of survivors know their attacker.

Sexual assault and rape can happen to people in all contexts, including marriage, dating relationships, friendships, child-parent interactions, employer-attendant relationships and stranger interactions.

If you are the victim of a sexual assault and wish to file a police report do not shower or wash your clothing worn during the assault.

Sexual assault is a felony in the state of CA. Sentencing can include up to 10 years in prison, fines, registration as a sex offender and expulsion from the University.