WASHINGTON: US employers added only 80,000 jobs in June, a third straight month of weak hiring that will likely complicate President Barack Obama's re-election efforts with the economy still struggling three years after the recession ended.    

The unemployment rate was unchanged at 8.2 per cent, the Labor Department said in its report Friday. The economy added an average of just 75,000 jobs a month in the April-June quarter. That's one-third of the 226,000 a month created in the first quarter.

For the first six months of the year, US employers added an average of 150,000 jobs a month. That's fewer than the 161,000 a month for the first half of 2011. And it shows that the job market is weakening.

''It's a disappointing report,'' said George Mokrzan, director of economics at Huntington National Bank in Columbus, Ohio. He said the job gains are consistent with sluggish economic growth.

The report is troubling news for Obama, whose prospects of winning re-election in November could hinge largely on the health of the economy.    Mitt Romney, the presumptive Republican presidential nominee, wasted no time in jumping on the data to criticize Obama's economic policies.

''The president's policies have not gotten America working again. And the president is going to have to stand up and take responsibility for it,'' Romney said in a speech, adding, ''This kick in the gut has got to end.''

Obama, campaigning in Ohio, focused on private-sector job growth. ''Businesses have created 4.4 million new jobs over the past 28 months, including 500,000 new manufacturing jobs,'' Obama said. ''That's a step in the right direction.''

The stock market sank on the news. The Dow Jones industrial average plunged nearly 200 points, or 1.5 per cent, by midday, and the Standard & Poor's 500 index fell 18 points, or 1.3 per cent.

Money flowed into government bonds, perceived by investors as safer. The yield on the benchmark 10-year US Treasury note, which moves in the opposite direction from its price, fell to 1.55 per cent, from 1.59 per cent on Thursday.

A weaker job market has made consumers less confident. They have pulled back on spending, even though gas prices have plunged since early spring.

Europe's debt crisis is weighing on US exports, which has slowed growth at US factories. And the scheduled expiration of several big tax cuts at the end of this year has increased uncertainty for many US companies, making many hesitant to hire.

High unemployment could shift momentum to Romney. An Associated Press-GfK poll released last month found that more than half of those surveyed disapproved of Obama's handling of the economy.

Obama is expected to face voters with the highest unemployment rate of any president since the Great Depression, and the economy is the top issue for many voters.

The June job figures could also prompt the Federal Reserve to take further action to try to boost the economy. The Fed last month downgraded its economic outlook for 2012. It predicted growth of just 1.9 per cent to 2.4 per cent. And it doesn't expect the unemployment rate to fall much further this year.

John Silvia, chief economist at Wells Fargo, said he didn't think Friday's report would prod the Fed to launch a new effort to boost growth after its next policy meeting at the end of this month.

But Silvia said if the job market doesn't improve over the next couple of months, the Fed might launch a third round of bond buying at its September meeting. Bond buying by the Fed is intended to lower long-term interest rates to encourage borrowing and spending.

''Most firms can achieve their output target with their existing labor force, so they are just not hiring,'' Silvia said. Silvia said the June job growth is consistent with annual economic growth below 2 per cent. Wells Fargo is forecasting growth in the April-June quarter at 1.5 per cent, weaker than the 1.9 per cent growth in the first quarter.

Such growth is too weak to lower the unemployment rate. Revisions to the job gains in April and May were little changed from the government's previous estimates.

There were some good signs in the report. The average work week grew to 34.5 hours from 34.4 in May, boosting many workers' paychecks.

And average hourly pay rose 6 cents to $23.50. Hourly pay has increased 2 percent in the past year and is ahead of inflation, which has fallen in recent months along with gas prices.

About one-third of the jobs gained in June were in temporary services. Manufacturing added 11,000, its ninth straight month of gains.

But growth in factory jobs slowed sharply in the second quarter compared with the first. Health care added 13,000 jobs, and financial services gained 5,000. Retailers, transportation firms and government cut jobs.