U.S. Hiring Slows Again, ADP Report Shows

American employers again dialed down their hiring, a monthly report showed, in a sign the labor market may be weakening amid growing economic uncertainty.

Just 37,000 jobs were created last month, down from 62,000 in April, according to the ADP National Employment report released Wednesday. Economists polled by The Wall Street Journal had expected hiring to pick up pace to 110,000 new jobs on the month. The downturn means jobs growth was its weakest in more than two years.

"After a strong start to the year, hiring is losing momentum," said Nela Richardson, ADP's chief economist.