UnitedHealth Group stock fell early Thursday following a report that the Justice Department is investigating the company for possible Medicare fraud. The healthcare-fraud unit of the department is overseeing the investigation that has been ongoing since at least last summer,

The Justice Department is investigating UnitedHealth Group for possible criminal Medicare fraud, people familiar with the matter said. The healthcare-fraud unit of the Justice Department’s criminal division is overseeing the investigation,

UnitedHealth Group is being investigated for possible Medicare fraud, according to The Wall Street Journal, sending shares of the healthcare company sliding in after-hours trading just one day after its CEO,