South Korean technology firm Samsung is urging customers around the world to power down and exchange their new Galaxy Note7 smart phones over safety fears.
"For customers who already have Galaxy Note7 devices, we now ask that you power down your device and return to using your previous phone," Samsung said in a statement Saturday.
The firm pledged to replace the devices with new ones.
Samsung has already started a recall of the model in question after complaints of batteries overheating, with dozens of customers saying that their phones had caught fire while charging.
Around 2.5 million devices worldwide will be recalled, with Samsung offering to replace them.
Several airlines and US air safety regulators have warned passengers to keep the phones switched off during flights. The US Federal Aviation Administration (FAA) earlier this week said it was preferable not to bring Note7 phones aboard at all.