A 21-year-old woman drowned in the Blue Earth River Tuesday afternoon while tubing with 3 friends. Blue Earth County Chief Deputy Mike Maurer says that the group had stopped to either swim or to sit down and the woman was last seen in the water and then did not resurface. Authorities were first called to the scene of the drowning near Rapidan Park at approximately 3pm Tuesday and spent about 4 hours searching for Jenny Mae Kraling of Mankato. Her body was found in around 20-feet of water near where she had gone under. Sheriff’s deputies from Blue Earth, Brown and Le Sueur Counties assisted at the scene along with Lake Crystal and Mankato Fire and Rescue personnel and DNR conservation officers. The death remains under investigation.