A Chrysler Town & Country minivan stolen from Drakesville Thursday morning was also recovered in the Des Moines River behind Applebee's in Ottumwa last week.
Several of the vehicles were totaled, including the Cutlass, Hummer and minivan.
"We've got multiple deputies and myself trying to get each individual figured out on who did what on each vehicle," Davis said. "That's not counting what the Bloomfield police and other sheriff's offices or OPD is doing. They have a laundry list of felony charges they're looking at here."
A Chevy Corvette was also stolen from Davis County two weekends ago, but Davis said he's not sure if it was related to this group's rash of thefts. The car was found burnt on the south end of the county.
Members of the Bloomfield Police Department, Jefferson County Sheriff's Office and Wapello County Sheriff's Office could not be reached as of press time Monday.
— To follow reporter Chelsea Davis on Twitter, head to @ChelseaLeeDavis.