EUGENE, Ore. -- A Eugene man accused of sexually abusing children may have had more victims, the Lane County Sheriff's Office said.

The investigation into Robert Davis, 70, is ongoing. Currently, he faces five counts of sex abuse charges involving two girls under the age of 14.

Sgt. Carrie Carver said they are asking for the public's help identifying possible victims.

"Maybe at the time, they weren't willing to come forward, and now they might be more willing because there is an active investigation, so we really want to be able to provide those people an opportunity to come forward and tell their story," said Carver.

Carver said the crimes occurred over the course of several years with victims spanning all across the United States.

"Sometimes it doesn't go as fast as we always want it to, but at the end of the day we want to make sure that we hear everybody's story who may have been a victim of Mr. Davis," said Carver.

Davis' neighbor, who has lived next door to him for decades, said he was shocked Davis was accused of these things.

Davis' pretrial conference is scheduled for Jan. 27.

"We are continuing to investigate and part of that investigation is ensuring that there aren't any additional victims out there that want to come forward and tell their story," Carver said.

KEZI 9 News spoke with Davis at his home on Tuesday, but he declined to comment on the charges.