Savanna Greywind's body was found in the Red River Sunday night.
Fargo Police Chief David Todd confirmed her body was pulled from the river around 8:20 p.m.
Kayakers had discovered her body earlier in the evening, Valley News Live says. It was wrapped in plastic and duct tap, and had gotten stuck on a log, just east of Harwood, North Dakota.
Around the same time Greywind's body was discovered, a search party found "suspicious items" on a farmstead on the Minnesota side of the river that made investigators think it was a crime scene, Todd said at a news conference Monday.
However, officials wouldn’t say whether Greywind was killed there or somewhere else. Her body was taken to the Ramsey County Medical Examiner’s Office in the Twin Cities.
Police had asked for the public's help searching farms and sheds for 22-year-old Greywind, who went missing on Aug. 19.
Greywind was 8 months pregnant when she disappeared. During their search efforts, police found a newborn baby in the apartment building where she was last seen.
During Monday’s news conference, officials said they couldn’t comment on whether the baby who was found in the apartment had been delivered naturally or via C-section.
Two people have been arrested on conspiracy to commit kidnapping charges.
Police plan to give more updates on the case on Monday.