Someone made a special delivery to the parking lot of the U.S. post office in Seven Valleys, and now state troopers want to correspond with that person.

Overnight Friday or Saturday morning, someone dumped a large number of rusty nails in the parking space of postal employee Lorie Sterner, 56, of Glen Rock, according to state police.

No other parking spaces had nails, and no vehicles were damaged, police said.

It's not the first time Sterner has been harassed in this way, troopers said.

Anyone with information about the harassment is asked to call state police at 428-1011.