An officer with the Los Angeles Police Department is now facing an additional charge of rape after a DNA match was discovered during an initial investigation into a sexual assault allegation.

According to NBC News, the officer—33-year-old William Rodriguez—was under investigation for allegations of sexual assault in a November incident when police entered Rodriguez's DNA into the FBI's Combined DNA Index System. They then got a "hit" on a cold case from August 2015.

Police said Rodriguez was off-duty at the times of the alleged assaults.

Rodriguez has been relived of duty—he was a 10-year veteran of the police department.