KAPOLEI, Hawaii (KHON2) — An investigation is underway after several City vehicles were targeted by catalytic converter thieves.

We’re told the vehicles were located at Kapolei Hale.

There were seven catalytic converters stolen.

The vehicles were used by the Department of Facility Maintenance, Department of Parks and Recreation and Environmental Services.

The city is looking into how much it will cost to fix the cars.

No arrests have been made yet.

While the area is patrolled by security guards, the City says it’s now considering additional security measures.