What began as a search-and-rescue operation for a missing 21-year-old kayaker on the Allegheny River has now turned into a recovery effort, as hazardous conditions continue to hamper rescue crews.

A twin-engine medevac jet crashed in a neighborhood in northeast Philadelphia Friday night, causing a fiery explosion, according to authorities and video from the scene.

A medical transport jet carrying a pediatric patient and five others has slammed into a Philadelphia neighborhood and ...

A timeline of the tragic collision between a commercial plane and a Black Hawk helicopter over the Potomac River, with ...

A medical transport jet with a child patient, her mother and four others aboard crashed into a Philadelphia neighbourhood shortly after takeoff Friday evening, exploding in a fireball that engulfed ...