NEW YORK - Police arrested 10 more people as part of the long-running investigation into alleged fraud in the federal pension system that covers retired Long Island Rail Road workers. Investigators say hundreds of people may have cheated their way to big pensions through a $1 billion fraud by paying off doctors to say they were unable to work. They say some supposedly disabled retirees were spotted regularly playing tennis and golf, shoveling heavy snow and working out for hours at a gym. The LIRR has said a federal agency acted as a rubber stamp without consulting the railroad.AP wire services contributed to this report.

Officials: 1,500 LIRR retirees may have falsely claimed disability