Samsung (SSNLF) received 92 reports of batteries overheating in the United States, including 26 reports of burns and 55 cases of property damage, the company said as it announced the recall in cooperation with the U.S. Consumer Product Safety Commission (CPSC).

See also: Samsung Will Cap the Galaxy Note 7’s Maximum Battery Life

The recall is a costly setback for Samsung, which was counting on Galaxy Note 7 to bolster sales as rivals such as Apple Inc launch new devices. The scale of the recall is unprecedented for Samsung, the world’s largest smartphone maker.

Samsung said on Thursday that new Note 7 replacement devices will be available at most retail locations in the United States no later than Sept. 21.

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Earlier this month, Samsung said it would recall all Note 7 smartphones equipped with batteries it found to be fire-prone and halted their sales in 10 markets, denting a revival of the firm’s mobile business.

CPSC chairman Elliot Kaye on a call with reporters said that companies should not try to do a recall alone.

“That in my mind anybody who thinks that a company going out on its own is going to provide the best recall for that company, and more importantly for the consumer, needs to have more than their phone checked,” he said.

While recalls in the smartphone industry do happen, including for rival Apple (AAPL), the nature of the problem for the Note 7 is a serious blow to Samsung’s reputation, analysts have said.

The CPSC said on Thursday that consumers should immediately power down and stop using the recalled Galaxy Note 7 devices.

Some 2.5 million of the premium devices worldwide need to be recalled, Samsung said. Some analysts say the recall could cost Samsung nearly $5 billion in lost revenue this year.

The U.S. Federal Aviation Administration said Thursday that air travelers must keep the recalled phones off and unplugged during flights, formalizing a recommendation it had made last week to passengers.

This story has been updated.