Los Angeles, March 15 (IANS) Rapper Iggy Azalea has expressed disgust after discovering a vial of semen in her fanmail parcel.

The rapper took to Twitter on Thursday to share her outrage with fans after an assistant found the shocking package at her home, reports aceshowbiz.com.

"Someone sent a vial of semen in the mail and the office assistant had to unknowingly open the package," she wrote, suggesting she had called in the FBI to investigate.

The "Fancy" hitmaker then warned the semen sender, noting DNA evidence will lead authorities to him.

"We have your DNA! Idiot... Hope you like the sex offenders registry," she added.

--IANS dc/rb/bc