MARYLAND — Apple Inc workers voted to join a union, becoming the first retail employees of the tech giant to unionize in the United States.

The union said that more than 100 workers in Towson have voted to join the International Association of Machinists and Aerospace Workers.

The Coalition of Organized Retail Employees wrote in a letter to Apple CEO Tim Cook that they have the support of a solid majority of our coworkers.

"This is something we do not to go against or create conflict with our management," they wrote.

"Nothing to add at this time, "Apple spokesperson said to Reuters.

Unionization efforts gained momentum at some large US corporations including Amazon.com Inc and Starbucks Corp.

Some current and former Apple workers last year began criticizing the company's working conditions online using the hashtag #AppleToo. — Agencies