A Japanese man has confessed to killing nine people over a two-month period, Japanese media citing police sources reported on Tuesday.
Takahiro Shiraishi was arrested on Tuesday after police had found several dismembered bodies in his apartment.
The 27-year-old reportedly said he cut the flesh off the bodies to dispose of them and put cat litter over the remaining body parts to hide them.
Japanese police say they plan to file multiple murder charges.
Police on Tuesday found two severed heads in a cold-storage container outside the flat of the suspect. They also found the body parts of seven other people, also stored in cool boxes, in his apartment.
But the day after the discoveries, more information emerged about the suspect. Police told local media that he found his victims on Twitter and say they suspect he killed them on the day that they met.
Investigators are still trying to identify all the victims but the discovery at his flat was made as police were looking into the disappearance of a young woman.
They said she had gone on Twitter looking for somebody to take her life with and the suspect had offered to do that.