SHERRILL, Iowa (AP) – Authorities have released the name of a man whose body was recovered from a marsh along the Mississippi River in eastern Iowa. The Dubuque County Sheriff’s Office identified the man Wednesday as 63-year-old Gary Koch, of Dubuque. The Sheriff’s Office says his death appears to be related to a medical condition.

His body was recovered from the marsh north of Dubuque around 1 a.m. Tuesday. Authorities had been searching for Koch since his family members sought help late Monday night.