Tesla workers launch campaign to form union in New York

FILE PHOTO: The logo of U.S. car manufacturer Tesla is seen in Zurich, Switzerland July 14, 2016. REUTERS/Arnd Wiegmann

(Reuters) -Tesla Inc workers in New York state said on Tuesday they are launching a campaign to form a union, setting the stage for the latest labor challenge for Chief Executive Elon Musk.

In a letter to the electric carmaker's management, the employees announced their plan to unionize with Workers United Upstate New York.