US regulators are issuing an official recall of Samsung’s Galaxy Note 7 phone because of the risk that its batteries can explode or catch fire.
Samsung already has voluntarily recalled the phone, but the US Consumer Product Safety Commission is stepping in to order a formal recall.
Samsung said it has confirmed a few dozen instances of the problem, out of 2.5 million phones sold.
Samsung promised replacement devices, but that was put on hold while regulators reviewed the situation.
The recall comes at a crucial time for Samsung, with its rival Apple announcing its own latest versions of the iPhone.
The Note series is one of Samsung’s most expensive, and demand for the phone had been high.