Someone has stolen about 100,000 eggs from a distribution trailer in south-central Pennsylvania as rising egg prices and shortages continue to worry U.S. consumers.

The theft of the eggs, which the authorities said were worth $40,000, comes as grocery shoppers across the country are facing empty shelves and higher prices for eggs.

Police say they are investigating the theft of 100,000 eggs from a Pennsylvania supplier. Egg prices have surged due to avian flu and holiday demand.