More than 500,000 so-called hoverboards sold by 10 different companies are being recalled over fire risks, according to the U.S. Consumer Product Safety Commission.

The lithium-ion battery packs in these self-balancing, two-wheeled scooters, also commonly referred to as hoverboards, can overheat, causing them to smoke, catch fire, and/or explode, the CPSC warned Wednesday. The agency said there have been at least 99 reports of the battery packs on these devices "overheating, sparking, smoking, catching fire and/or exploding including reports of burn injuries and property damage."

The recall most notably includes some 267,000 X1 hoverboards made by Swagway as well as 28,000 Hovertrax brand boards made by Razor USA, and all hoverboards sold on Overstock.com. It also affects the following hoverboard brands: Hover-Way, Powerboard, Hype Roam, iMoto, Airwalk Self Balancing Electric Scooter, Wheeli, 2Wheelz, Back to the Future, Mobile Tech, Hover Shark, NWS, X Glider, X Rider, and Orbit.

Owners of the affected boards should "immediately" stop using them and contact the recalling company for a full refund, a free repair, or a free replacement, depending on the model, the CPSC said. For a full list of affected models as well as contact information for recalling companies, head over to the CPSC's website.

The recall comes after the CPSC in February issued an official warning to manufacturers, importers, and retailers of self-balancing scooters, urging them to get their devices certified, or risk civil and criminal penalties.