SALT LAKE CITY — A union leader says the government shutdown has furloughed some workers at Hill Air Force Base while forcing others to work without pay.

Monty Lewis says the skilled aircraft workers are angry over the standoff in Congress. Lewis is president of the American Federation of Government Employees Local 1592. It represents about 8,000 mechanics, electricians, sheet-metal workers and others at Hill Air Force Base.

More than 50 furloughed workers joined one protest outside Hill Air Force Base on Tuesday and plan to do it again.

Lewis says they will gather Thursday outside the Ogden field office of U.S. Rep. Rob Bishop, R-Utah.

Hill Air Force Base is Utah's largest employer with some 25,000 federal employees and contractors. It pours about $3 billion into the Utah economy.