DES MOINES, Iowa (WHO-DT, CNN) -- The Iowa Department of Public Safety is now part of an investigation into claims that the residents of the Glenwood Resource Center, which treats intellectually and physically disabled Iowans including children, were subject to human experiments.

The Iowa Department of Human Services issued a statement regarding Glenwood Resource Center on Monday.

It said DHS Director Kelly Garcia requested support from the Department of Public Safety to "assist in reviewing additional allegations made in the course of her fact-finding efforts. The Department of Human Services will continue to be transparent and provide updates as this unfolds, being careful not to jeopardize any aspect of the investigation."

The U.S. Department of Justice is already investigating and sent a letter to Gov. Kim Reynolds last month, saying it is specifically looking into claims that the facility performed sexual arousal and optimal hydration studies on residents.

"We are working with the DOJ doing everything that we can first of all to make sure that the residents are getting the care that they need and that they are being taken care of so that remains the top priority and then you know just looking at policies and procedures and reviewing what some of the feedback has been from the personnel," said Gov. Reynolds. "There's some information that is protected but try to be transparent and open and I think Director Garcia has done a good job in doing that."

Federal investigators visited Glendwood on December 6 and Director Garcia toured the facility last week.

Here's what she said about the allegations earlier last week.

"Obviously took the allegations incredibly seriously and immediately reached back out to DOJ to ask some clarifying questions," said Garcia.

State Representative John Forbes says legislators and citizens across the state are disturbed by the allegations.

"People across the state of Iowa are concerned. These are our most vulnerable patients here in the state of Iowa and again we want to make sure they are well taken care of," said State Rep. Forbes (D-IA).

The Glenwood Resource Center is located in Glenwood, Iowa, and serves people from a 52-county area within the state.

The center provides residential services to approximately 250 people diagnosed with intellectual disabilities, according to their website.