The heist of 100,000 eggs from the back of a trailer in Pennsylvania has become a whodunit that police have yet to crack.

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.

Pennsylvania State Police were hunting on Wednesday for thieves who stole about 100,000 organic eggs from a wholesaler's warehouse over the weekend, a haul worth more than $40,000 retail amid a national shortage that has caused prices to surge.