The crash of the Jet Rescue Air Ambulance, which operated the Learjet 55, comes two days after the country’s deadliest aviation disaster in almost a quarter century, in Washington, D.C.

A pediatric patient was among those on board, officials said. The aircraft went down about 6:30 p.m. shortly after takeoff and no survivors have been confirmed.

A medical transport jet headed for Missouri and carrying two people and four crew members crashed in Northeast Philadelphia Friday night.

The six people on board the Mexico-bound medical jet include a girl who had received life-saving treatment at a Philly children's hospital, her mother, a pilot, copilot, doctor and paramedic.