The Los Angeles Police Department has opened a criminal investigation against Charlie Sheen, the LAPD confirmed on Wednesday.

While the LAPD spokesperson could not confirm the nature of or the victim in the investigation, several reports claim that Sheen made threats against the life of his ex-fiancee Scottine Ross. In an alleged audio tape, Sheen can apparently be heard threatening to pay someone $20,000 to kill Ross.

“This piece of sh– needs to be f—ing buried,” Sheen reportedly says of his ex-fiancee. “I’d rather spend 20 grand to have her head kicked in.”

The LAPD did confirm that authorities obtained a search warrant in the case.

Sheen also allegedly admits in the tape that he lied to a sexual partner about his HIV status.

“Why did you tell me you were not infected?” an unidentified woman reportedly asks Sheen in the tape.

“Because it’s none of you f—ing business,” Sheen apparently answered.

Ross was engaged to the “Two and a Half Men” star in 2014, but the couple never married. In the midst of their bitter breakup, Ross sued Sheen, accusing him of abusing her mentally and physically and for negligently exposing her to HIV.

In late 2009, Sheen was arrested on domestic abuse charges after he allegedly threatened to kill his then-wife Brooke Mueller.

Variety has reached out to a lawyer for Sheen, Marty Singer, for comment.