Tyler Robinson, the suspect in custody for the assassination of Charlie Kirk, is being held under “special watch” until he completes a mental health evaluation, authorities said Sunday.

Robinson, 22, will remain on a special watch status in the Utah County Sheriff’s Department special housing unit so that authorities can “keep a close eye on him” until officials can clear his mental health, the department said in a statement.

The process may take several days, the sheriff’s department said.

Once cleared, Robinson will continue with the classification process to determine where he will be housed while in custody.

Robinson was arrested following a 33-hour manhunt.

A law enforcement source previously told Fox News Digital that Robinson’s father, who ultimately turned him in to authorities, told the FBI that he recognized his son from surveillance video images the FBI had released during the manhunt.

The source told Fox News Digital that when Robinson arrived at his father’s home, he said he wanted to kill himself. The source told Fox News Digital that the father spoke with a minister the family knew before turning in his son.

Republcan Utah Gov. Spencer Cox declared the fatal shooting of Turning Point USA founder and dad of two, Charlie Kirk, to be a “political assassination” during a news conference last week. (Fox News)

Utah Gov. Brian Cox told ABC News on Sunday morning that Robinson was not cooperating with authorities while in custody.

“He has not confessed to authorities. He is not cooperating, but all the people around him are cooperating. And I think that’s, that’s, that’s very important,” Cox told ABC News.

The governor said that Robinson’s family members and his romantic partner, a man who is transitioning from male to female, are cooperating with authorities. He added that those who know the 22-year-old say he was “deeply indoctrinated with leftist ideology.”

Fox News’ Alexandra Rego and Fox News Digital’s Brooke Singman and Anders Hagstrom contributed to this report.