Vandals throw hamburger patties, French fries, furniture in northern Va. water park pool

The hamburger patties, French fries and pretzels tossed into the pool were bad enough. But did a vandal really have to smear mozzarella cheese on the water slide?

Officials in northern Virginia's Prince William County said that mischief was done overnight at Waterworks Waterpark, plus more.

But it's no laughing matter: The park is closed until workers can drain, sanitize and refill the pool.

Prince William County Park Authority spokeswoman Dianne Cabot says the vandalism took place between 10 p.m. Friday, when the last lifeguard left, and 8 a.m. Saturday. A reward is being offered for tips leading to an arrest in the case.

Officials say in addition to the food, someone threw tables, chairs, lifeguard stands and cigarette butts in the water.