Police arrested a 27-year-old man in Zama, Kanagawa Prefecture, on Tuesday after finding parts of nine bodies in his apartment, investigative sources said Tuesday.

The Metropolitan Police Department made the discovery while investigating Takahiro Shiraishi in connection with the disappearance of a 23-year-old woman from Hachioji, Tokyo. The woman is believed to have met the man after writing on a suicide website that she wanted to kill herself.

"It's true that I tried to hide the bodies of the people I killed to destroy evidence," Shiraishi was quoted as saying by the police.