As Las Vegas police said Wednesday that no arrests had been made in the fires that torched several Teslas the day before, some owners of the popular electric vehicles said they were worried about possible acts of vandalism to their cars.

Peaceful Tesla protests have taken place across the country—but some dealerships have also been hit with acts of vandalism, including gunfire and arson, in protests apparently directed at Elon Musk.

As Las Vegas Metropolitan police and feds search for the suspect — or suspects — involved in the Tesla fires investigation, Tesla locations across the valley are seeing increased security.