The United States Consumer Product Safety Commission officially piped in on the Galaxy Note 7 recall on Friday afternoon, asking owners of the Galaxy Note 7 to officially stop using their Galaxy Note 7 smartphones. The CPSC said it will announce an official recall soon, following Samsung’s own recall last week.

The news follows the FAA’s recent warning to consumers to power down or stop using smartphones before boarding planes, but this is much more serious.

“When these batteries overheat and burst, the results can be serious. This is why the U.S Consumer Product Safety Commission (CPSC) is urging all consumers who own a Samsung Galaxy Note7 to power them down and stop charging or using the device.” The results can indeed be serious. Yesterday, for example, a man in Florida said a Galaxy Note 7 left charging in his car was responsible for burning the Jeep Grand Cherokee to the ground.

The CPSC said it is working with Samsung to “formally announce an official recall of the devices as soon as possible.” It also said it’s going to investigate whether or not “a replacement Galaxy Note 7 is an acceptable remedy for Samsung or their phone carriers to provide to consumers.”

“Samsung continues to ensure that consumer safety remains our top priority. We are asking users to power down their Galaxy Note7s and exchange them now.” Samsung Electronics America president Tim Baxter said. “New Note7 replacement devices will be issued to exchange program participants upon completion of the CPSC process. In the interim, consumers can return their Note 7 for another device.”

Samsung said that it still only knows of “a small number of reported incidents” and that all shipments of affected inventory have been halted. Galaxy Note 7 owners can exchange their device for a Galaxy S7 or Galaxy S7 Edge or for a loaner phone from U.S. carriers. Galaxy Note 7 owners who haven’t exchanged their unit yet are urged to do so by either visiting the store they purchased the phone from or by calling 1800-SAMSUNG.