(Reuters) – Amazon said on Thursday it will support Apple’s fight against a magistrate’s order, which requires it to help the U.S. Federal Bureau of Investigation break into a San Bernardino shooter’s iPhone.

An Amazon spokesman said the company was still working on its “amicus options.”

The online retailer joins Alphabet’s Google, Facebook, Microsoft and Twitter in voicing support for Apple.

(Reporting by Mari Saito)

For more coverage of Apple and the FBI’s fight over unlocking the San Bernadino shooter’s iPhone, visit our timeline of the case here.