Police are calling the theft of 76 catalytic converters from an Elkhart, Ind., company the biggest theft of its kind in the city, according to a report in the South Bend Tribune.

The converters were discovered missing Tuesday (March 6) morning from Glaval Bus, a division of Forest River Inc.

Company officials said the converters were cut off bus chassis and likely taken by a group of people using power tools.

Larry Witmer, Glaval Bus service manager, said each converter is worth about $1,000. While the company’s insurance should pay to replace the parts, the theft will cost Glaval production time.

“They were raw chassis in pre-production mode. For 76 converters, to get them from Ford, it will take a little while to get everything organized and put back together,” Witmer said.

Witmer says this isn’t the first time the company’s been targeted by thieves. In January, 38 catalytic converters were stolen.

Elkhart City Police said numerous RV companies have been targeted by thieves in recent months.

Glaval has added extra security at its plant and police have warned scrap yards and other companies to watch for suspicious activity.

Anyone with information about the thefts from Glaval or other RV companies should call Elkhart Police at 574-293-2175.