Air ambulances help boost a patient’s odds of surviving and recovering, particularly in rural areas that don’t have trauma or burn centers. More than 550,000 patients in the U.S. use them every year.

In an update Sunday, Mayor Cherelle Parker said that 22 people were injured. Of those, five people remain hospitalized, with three of them in critical condition.

A Learjet 55 crashed Friday night in Philadelphia, sparking a massive explosion. The FAA said six people were on board the plane.

A small medical transport jet carrying a child and her mother along with four other people was in the air for less than a minute after taking off from Northeast Philadelphia Airport before coming down in a fiery "high-impact" crash near a busy mall Friday evening.

The email dropped almost exactly 24 hours after an Army helicopter crashed into an American Airlines jet as it came into land at Reagan National Airport, k New footage has captured the moment a passenger plane and military helicopter collided above Washington DC,

At least seven people were killed and 19 were injured when an air ambulance crashed to the ground on a busy Philadelphia street, creating what witnesses described as a massive fireball and a chaotic street scene.