Regulators in EU countries have have opened investigations after France banned the sale of Apple’s iPhone 12 due to concerns about its radiation levels.

France’s National Frequency Agency (ANFR) said on Tuesday that the iPhone 12 exceeds European exposure limits for radiofrequency energy. The agency warned that Apple could be forced to recall the phones if it does not comply with the regulations.

Labs commissioned by ANFR found absorption of electromagnetic energy by the body at 5.74 watts per kilogram in test simulations. The European standard absorption rate is 4.0 watts per kilogram.

Apple has disputed the ANFR’s findings, saying that the iPhone 12 is safe.

The Dutch digital watchdog, the Nederlandse Rijksinspectie Digitale Infrastructuur (RDI), told news outlet Algemeen Dagblad it will