The suicide rate among middle-aged Americans rose 28% in a decade, a new report from the Centers for Disease Control (CDC) has found.
Among adults 35-64, white people and American Indians saw the sharpest increases from 1999 to 2010.
The CDC did not investigate causes behind the trend, but noted many suicide prevention programmes were geared towards youths and the elderly.
Since 2009, suicide has claimed more Americans than motor vehicle crashes.
There were 38,350 suicides in 2010, making it the nation’s 10th leading cause of death, the CDC said.