A woman who discovered her boyfriend had been cheating on her sliced off his penis with a kitchen knife and tossed it down the toilet as he slept, Peru media reported on Sunday.
Julia Munoz Huaman, 41, confessed she emasculated her companion Ramon Arias, 46, in a jealous rage.
The grisly incident at a hostel stunned residents of the Lima neighbourhood of Brena where it took place. Security guards nabbed the woman and detained her as Arias wailed in pain.
He was rushed to hospital and placed in intensive care, according to the America TV report.