Detroit health department officials say two thefts have put the personal medical information of an estimated 10,000 Detroit residents at risk.
Officials said that in late October a flash drive was stolen from a health employee's car, and during Thanksgiving break computers were stolen from the department's Herman Kiefer Health Complex.
The stolen equipment contained Social Security numbers, birth dates, and Medicare and Medicaid information.
Spokesman Michael McElrath told the Detroit News and Detroit Free Press that letters are being sent to those whose information is at risk. Officials also are seeking updated addresses for others they believe are affected.
An investigation is ongoing.