US employers added only 29,000 jobs in September, a steep decline from August's gains and a fraction of what economists had forecast, new figures from the Bureau of Labor Statistics show.
The unemployment rate ticked up slightly to 4.2 percent. Economists had expected just under 70,000 new jobs for the month, making the actual result a significant miss.
The September report is the final jobs data published before the midterm elections, giving it particular political weight as voters head to the polls.
The figures continue a pattern of weak hiring through the middle of the year. August saw 162,000 jobs added, but June and July recorded much smaller gains of 31,000 and 21,000 jobs respectively. The latest numbers suggest the labour market has cooled considerably in recent months.
The BLS data provides the most authoritative monthly read on the health of the US job market and is closely watched by policymakers, economists and investors as a gauge of broader economic conditions.