PHILADELPHIA (WPVI) -- The Philadelphia Parking Authority is scanning the streets for more than just expired meters.
Agents are now cracking down on so-called "ghost cars."
Those are vehicles without license plates.
Owners will sometimes remove or obscure the tags so they cannot be connected to a ticket and to avoid paying tolls.
The PPA has towed more than 20 ghost cars since last month.
If you see a car parked without a license plate, you can report it to the PPA using an online form at PhilaPark.org.