Police are looking for a pair of thieves who stole 17 cases of frozen meatballs from a tractor-trailer parked in Old City early today.

But why anyone would steal 510 pounds of beef meatballs, they don't know.

Police said the driver was sleeping inside the rig on the 500 block of North Columbus Boulevard when the thieves broke the trailer's seal and started unloading the frozen meat around 12:40 a.m.

The driver of another truck discovered the heist while it was under way and two meatball thieves sped off in what appeared to be a brown Ford Windstar van.