(Center City, MN) -- The Washington County Sheriff's dive team conducted a training exercise and search Sunday for a missing Oakdale woman in Bone Lake. Officials say there was no sign of 27-year-old Danielle Jelinek. Jelinek was last seen by her on-again/off-again boyfriend in Chisago Lake Township the night of December 8th. Twenty-eight-year-old Aaron Schnagl was arrested on drug charges following a search of his home and is called "a person of interest" in the case. Jelinek's purse, shoes and cell phone were found at Schnagl's house and blood stains were discovered in his home and vehicle. Her family suspects foul play in her disappearance. Anyone with information should contact the Washington County Sheriff's Department.