Several vehicles parked in the Cal Expo parking lot have been targeted by thieves during the California State Fair.
Since the fair started on July 11, there have been several catalytic converters stolen from parked cars, some even stolen Tuesday night.
"We do have surveillance cameras, we do have staff from a lot of different agencies out here collaborating together, investigating and thoroughly working at how we can prevent this," State Fair Media Director Lara Popyack said.
Officials are not releasing many details of the investigation, but say no arrests have been made.
The converters are part of the exhaust system that reduce car pollution. Thieves target the converters for their metallic value. The recyclable metal can net around $120, but tt costs $1,500 to replace one.
Safety officials at the fair said they are utilizing surveillance systems to catch the thieves, while some people think security should be beefed up.
"I kind of wish they had more security in the parking lot," fairgoer Caitlin Galvez said.