巣鴨拘置所
Sorge was hanged on 7 November 1944, at 10:20 Tokyo time in Sugamo Prison and was pronounced dead 19 minutes later. Hotsumi Ozaki had been hanged earlier in the same day. Sorge's body was not cremated because of wartime fuel shortages. He was buried in a mass grave for Sugamo Prison inmates in the nearby Zoshigaya Cemetery.