More than 2 million take-home COVID-19 test kits have been recalled over a “potential false positive,” according to a report from the Food and Drug Administration.

In an announcement on Nov. 10, the FDA provided an update regarding the Oct. 5 recall of COVID-19 at-home tests. Ellume, an Australian medical test diagnostics company, has now recalled more than 2 million out of 3.5 million tests sent to the United States last month, the New York Times reported.