All six people on board Philadelphia medical plane killed in crash/ Screengrab BBCA small medical transport plane crashed into several buildings in the US city of Philadelphia on Friday evening, killing all six people on board and at least one other person on the ground, the mayor has confirmed.
The jet was on a medical transport trip, heading to Tijuana, Mexico, with a short stop-over in Missouri. It was carrying a child patient and her mother, along with two pilots, a doctor and paramedic. They were all Mexican nationals.
But just one minute after take-off, the Learjet 55 plummeted to the ground. Videos show the plane coming down quickly and sparking a huge fireball.
Nineteen others were injured, though Mayor Cherelle Parker said that number could still change.
Speaking at a news conference on Saturday, Philadelphia city managing director Adam Thiel said it would probably be "days or more" until officials are able to confirm "the number of folks who perished in this tragedy and the outcome of those who were injured".
He added that there is still "a lot of unknowns about who was where" when the crash happened.
The girl being transported to Mexico had just finished medical treatment for a life-threatening illness at Shriners Children's Hospital in Philadelphia.
Earlier on Friday, staff had thrown her a party to celebrate, hospital spokesman Mel Bower said. He added that staff who treated her had been "impacted very deeply" by news of the tragedy.
The flight was bound for Springfield, Missouri for a short stop-over, before continuing onto Tijuana.
The plane left Northeast Philadelphia Airport at about 18:07 local time (23:07 GMT) on Friday, rose to 1,500ft, turned slightly right, then slightly left, then began a steep descent, National Transportation Safety Board (NTSB) officials said.
The crash occurred less than four miles (6.4km) away. Flight logs show the plane was in the air "for only a minute" before it crashed, Mayor Parker said.
No issues were reported from the plane to air traffic control, and controllers who attempted to get a response from the flight crew did not receive one, NTSB chair Jennifer Homendy said.
