PROMONTORY, UT—One person was injured as a result of an explosion late Thursday afternoon at Autoliv’s air bag assembly plant here.

SALT LAKE CITY—For a fourth straight year, Utah posted a significant gain in manufacturing employment. Utah manufacturers added 3,798 jobs from September 2013 to September 2014, a 2.2 percent increase.

SALT LAKE CITY—Varian Medical Systems, a manufacturer of X-ray equipment, broke ground Wednesday on a new expansion project at its assembly plant here and create 1,000 new full-time jobs in the state over the next 20 years.