Somebody stole an ambulance in Calhoun County while it was on a call to pick up a patient overnight.

Barry County deputies say they found the Life EMS ambulance running north up M-37 in Baltimore township about 1:45 a.m.  

They report chasing it down and arrested the 53 year old woman who was the only occupant.

She's back in Battle Creek this morning, under arrest, after telling.deputies she was just trying to get home to Southfield.