Multiple American airlines have already banned self-balancing scooters from their aircraft over the potential fire risk, and now the US Postal Service is adding itself to that list.

The USPS outlined the move in a statement earlier today:

“Effective immediately and until further notice, the Postal Service will ship the hoverboards only using Standard Post/Parcel Select, which travels on ground transportation, due to potential safety hazards pertaining to lithium batteries.”

The move comes after a spate of fires related to faulty batteries and chargers. Retailers like Overstock and Amazon have started limiting sales of some or all of the boards, and Amazon UK even emailed customers asking them to destroy boards for their own safety.

[CNET]