The number of Americans filing for unemployment benefits fell to near a 49-year low last week, pointing to sustained labor market strength that should continue to underpin economic growth.

Initial claims for state unemployment benefits dropped 10,000 to a seasonally adjusted 203,000 for the week ended Sept. 1, the lowest level since December 1969, the Labor Department said on Thursday. Data for the prior week was unrevised.

Economists polled by Reuters had forecast claims rising to 214,000 in the latest week. The Labor Department said claims for California, Hawaii, Kansas, Maine, Puerto Rico and Virginia were estimated because of Monday's Labor Day holiday. That could have exaggerated the decline in claims last week.

The four-week moving average of initial claims, considered a better measure of labor market trends as it irons out week-to-week volatility, fell 2,750 last week to 209,500, also the lowest level since December 1969.

Last week's claims data has no bearing on August's employment report, which is scheduled for release on Friday, as it falls outside the survey period. Claims were mostly low during the month.

According to a Reuters survey of economists, nonfarm payrolls likely increased by 191,000 jobs last month after rising by 157,000 in July. The unemployment rate is forecast slipping one-tenth of a percentage point to 3.8 percent, revisiting an 18-year low touched in May.