An eighth person has died months after the crash of a medical transport plane in Philadelphia, city officials said Tuesday.

PHILADELPHIA — An eighth person has died months after the crash of a medical transport plane in Philadelphia ... an Army helicopter over the Potomac River near Washington, D.C., killed 67 ...

PHILADELPHIA — An eighth person has died months after the crash of a medical transport plane in Philadelphia ... an Army helicopter over the Potomac River near Washington, D.C., killed 67 ...

Emergency responders on the Potomac River were contending with dark and bitterly cold conditions. (Al Drago/Getty Images) Local law enforcement declined to confirm any fatalities early Thursday ...