U.S. jobs growth rebounded in June, but the pace of labor-market growth was slower than economists had forecast, based on a report Wednesday from payroll firm Automatic Data Processing.

Private employers added 102,000 jobs in June, ADP said. Economists had forecast a gain of 140,000 jobs, according to FactSet. In May, the employers added just 27,000 jobs, which was the slowest growth in nearly a decade.

Economists have been scrutinizing data releases for indicators on future growth, as President Donald Trump's ongoing trade war with China casts a shadow over financial markets despite the truce agreed to at last week's G-20 summit in Japan. 

The ADP report could serve as a preview for the U.S. Labor Department's official monthly report on national employment, due out Friday.

That report is expected to show that employers including federal, state and local government agencies added 147,500 last month, rebounding from an anemic 90,000 new jobs in May.