Police investigating an alleged rape at a house where two University of Nebraska (UN) football players live could not find evidence sufficient to support criminal charges.

According to The Associated Press, Lancaster County Attorney Joe Kelly and Lincoln Police Chief Jim Peschong made the announcement Wednesday morning at a press conference.

"Filing charges would require proof beyond a reasonable doubt," Kelly told reporters. "That simply is not there."

After being admitted to the hospital on Nov. 15, a 20-year-old woman said she was raped at a house where two UN football players lived: quarterback Tommy Armstrong and wide receiver Jordan Westerkamp. Trey Foster, a tight end on the team, was in the house at the time as well. Police said there were six people in the house at the time of the alleged rape, all of who spoke to investigators.

Police did not disclose whom they considered a suspect, but Armstrong previously told The Omaha World-Herald "nothing happened" that he knew of. The woman told police she knew her alleged rapist and there was forensic evidence as a result of a rape kit, USA Today reported.

Kelly told reporters Wednesday morning forensic evidence "wasn't an issue," indicating the evidential shortcomings in the investigation were elsewhere.

With no criminal charges filed, UN will take no disciplinary action against the three student-athletes, ESPN noted.

"We are aware of this morning's announcement by the Lincoln Police Department and the Lancaster County Attorney. There is no change in the status of any student-athletes," the school said in a statement. "We will continue to follow University policies."