US consumer confidence unexpectedly fell in September by the most in three years on concerns about the labor market and the outlook for the broader economy.

U.S. consumer confidence dropped by the most in three years in September amid mounting fears over the labor market, though more households planned to buy a home over the next six months. The Conference Board survey on Tuesday also showed consumers expected inflation to increase in the coming year,

Concerns about the labor market's future sent the Consumer Confidence Index tumbling in September to 98.7, its lowest point in three years, the Conference Board reported on Tuesday.