Discount retailer Costco says it's again limiting purchases for some items, including toilet paper and bottled water, due to supply chain issues and renewed demand amid COVID-19 surges nationwide.

The company said Thursday that the limits are a response to some panic buying at various locations that has occurred amid a rise in infections, due mainly to the Delta coronavirus variant.

Costco Chief Financial Officer Richard Galanti said the limits apply to high-demand items like toilet paper, bottled water, paper towels and some cleaning products.

"The factors pressuring supply chains and inflation include port delays, container shortages, COVID disruptions, shortages on various components, raw materials and ingredients, labor cost pressures, and trucker and driver shortages," he said, according to AlphaStreet.

Costco first introduced buying limits on certain items last year due to rises in coronavirus cases and panic buying that followed.

Galanti also noted that delays and shortages are affecting availability of furniture, computers and appliances.

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