Local authorities are telling citizens to be cautious after three more catalytic converters were stolen in the area last week.
There have been at least six catalytic converter larcenies since the thieves first struck May 11.
Catawba County Sheriff Coy Reid said Tuesday that it is easy to deter possible larcenies.
"You can try to leave your car in a garage or lighted area," Reid said.
Reid said it takes less than 30 seconds for an experienced thief to successfully cut and remove a catalytic converter.
"We're not sure if its the same people doing it, but there's a good chance it is," Reid added.
The most recent catalytic converter theft occurred Monday at 4750 Lookout Dam Road, which sits on the border of Claremont and Catawba and is near the location of past larcenies.
A catalytic converter is a device used to reduce car emissions and can vary in price. A converter stolen May 15 from same address on Lookout Dam Road cost $1,500.
Reid said that several sheriff's deputies have been canvassing incident locations daily looking for suspects involved in the thefts.
Anyone with information on the incidents is asked to call (828) 478-1178.