Employees found pill bottles filled with live insects hidden inside children's clothing.
Police in Pennsylvania are investigating an intentional release of bedbugs inside a Walmart.
A manager at the store at Washington Township contacted authorities after an employee discovered a closed pill bottle filled with live insects inside the men's changing room on Thursday, Go Erie reported.
The container was hidden inside a boy's jacket for sale in the store.
"We have not had any other incidents in our area involving bedbugs," she added.
As their name suggests, bedbugs are tiny parasites that typically live in mattresses and bed frames, feeding on sleeping humans by biting and sucking their blood. They can, however, be transferred on clothing or luggage.
They do not spread disease, but their bites cause itchy welts, and thus sleep problems. They can go months without feeding, and the longer an infestation is left unchecked, the more difficult it is to get rid of.