Millions of people rely on continuous glucose monitors to help manage diabetes. But a new alert from the U.S. Food and Drug Administration warns that some sensors from Abbott may give incorrect blood sugar readings, which could lead to unsafe treatment decisions.

The issue affects about 3 million FreeStyle Libre 3 and FreeStyle Libre 3 Plus sensors, the FDA said. No other Libre products are included in the alert.

So far, the FDA has linked these incorrect readings to at least seven deaths and more than 700 serious injuries worldwide. About 60 of those injuries happened in the United States, according to Abbott. None of the U.S. cases were fatal.

"Patients should verify if their sensors are impacted and immediately discontinue use and dispose of the affected sensor(s)," the FDA stated.

Related