By a 2-to-1 margin, the group marked its second defeat after a surprise victory in April on Staten Island.

Company officials said the terminations in Staten Island were the result of an internal review while the fired managers saw it as a response to...

The results were a setback for the upstart Amazon Labor Union, which last month won a landmark victory at a larger Amazon warehouse nearby.

Despite heavy lobbying by the company, workers at the facility voted by a wide margin for a union. It was seen as a rebuke of...