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Seven people are dead, including one in a car on the ground, after a twin-engine medevac jet carrying a child patient and her mother crashed in a neighborhood in northeast Philadelphia Friday night, Philadelphia's mayor said Saturday morning.
At least 19 were injured on the ground.
The six people on the plane were Mexican nationals, Mexico's president said on Saturday morning.
"I mourn the death of six Mexicans in the plane crash in Philadelphia, United States," Claudia Sheinbaum said.
"The consular authorities are in permanent contact with the families; I have asked the Ministry of Foreign Affairs to support them in whatever way is required. My solidarity with their loved ones and friends."
The plane crash, about 150 miles to the northeast of the Washington, DC, area came as authorities continue their probe into Wednesday's deadly collision there. An American Airlines regional jet carrying 64 people and a US Army Black Hawk helicopter with three soldiers onboard collided over the Potomac River. All are presumed dead.
The Learjet 55 crashed after departing from Northeast Philadelphia Airport, the Federal Aviation Administration told CNN.
On board were a pediatric patient and her mother returning home to Mexico after the child had been treated in Philadelphia, said Shai Gold, spokesperson for flight operator Jet Rescue Air Ambulance.
The girl was being treated for an illness at Shriners Children's Hospital in northeast Philadelphia, city officials said on Saturday.
The downed Learjet was en route to Springfield-Branson National Airport in Missouri, the FAA said. Gold told CNN the flight planned to stop for refueling at the Springfield airport before continuing to its final destination of Tijuana, Mexico.
Also on board were four crew members, Gold said – a pilot, co-pilot, paramedic and doctor. All six people on board were Mexican nationals, according to Mexico's foreign ministry.
"It is entirely possible there will be changes to those casualty figures," Philadelphia's managing director Adam Thiel said on Saturday at a news conference.
"It will likely be days or more until we are able to definitively answer the question about the number of folks who perished in this tragedy."
Thiel said the area of impact from the crash is roughly four to six blocks, and officials have discovered debris around the city.
"It's a very widespread area and we're still trying to determine the entire scope."
Philadelphia Mayor Cherelle Parker urged residents who may have been in the area during the explosion to check their vehicles and property for potential evidence.
"Don't touch it, just call 911," she said.
The plane took off just after 6 pm (local time) and reached 1650 feet before plunging, according to data from ADS-B Exchange.
The data shows the final speed of descent was 11,000 feet per minute.
As an air traffic controller tries to contact the plane, there's a callout, heard on LiveATC.net, "Medevac med service, northeast tower. Medevac med service, northeast tower. Are you on frequency?"
A little over a minute later, the controller is heard saying: "We have a lost aircraft."
Several houses and vehicles "were impacted", Parker said at a news conference on Friday evening, but added that "we have no reports on the number of fatalities."
CNN affiliate KYW reported there are several injuries reported on the ground.
Six patients were sent to Temple University Hospital-Jeanes Campus after the crash, a spokesperson from the hospital confirmed to CNN.
Three patients were treated and discharged, while the other three are in "fair condition", the spokesperson said.
"No names are being released at this time until family members have been notified," Jet Rescue said in a statement.
"Our immediate concern is for the patient's family, our personnel, their families and other victims that may have been hurt on the ground. More information will be released as it becomes available."
A photo of the twin-engine jet, which has a tail number that indicates it is registered in Mexico, shows it has "Jet Rescue" painted on it. It also has medical logos on its tail and wingtip.
Video from CNN affiliate WPVI showed flames and a large cloud of smoke at the scene as several fire trucks responded to the incident. The fire is under control, Philadelphia Fire said in a post on X on Friday night.
Philadelphia's emergency management department said roads were closed in the area of Cottman and Bustleton avenues due to the "major incident."
Nearby, the Northeast Philadelphia Airport was temporarily closed following the crash, but is now reopened, the airport told CNN.
Across the street from the crash, Roosevelt Mall was evacuated, mall spokesperson Kristen Moore told CNN. There were no injuries or damage at the mall, she said.
Pennsylvania Gov. Josh Shapiro said he is offering all Commonwealth resources as the emergency response unfolds. Sen. John Fetterman also wrote on social media that he was in touch with the Philadelphia mayor and awaiting further information.
Sen. Dave McCormick said he is "closely monitoring the tragic situation," adding that he has reached out to the mayor and local law enforcement to lend "full support."
Members of the state's emergency management agency and transportation department are on the ground, along with 45 state troopers, Shapiro told reporters on Friday night. The state's environmental protection department is also making sure that hazardous materials "are addressed," Shapiro said.
The FAA and National Transportation Safety Board investigators are on scene, according to US Department of Transportation Secretary Sean Duffy.
"The impact was so devastating, I think they're going to have their hands full," Peter Goelz, former managing director of the NTSB, told CNN Saturday.
The older model Learjet lacked voice and data recorders, and while there's some video available of the incident, none of it so far is particularly clear, Goelz said.
"The only tip-off might be if something came off the plane earlier and is a little further down the flight track," Goelz said. "That might help indicate what happened, because the first piece off is the most important."
President Donald Trump has been briefed on the crash, Duffy said in a post on X.
"So sad to see the plane go down in Philadelphia, Pennsylvania," Trump said in a Truth Social post. "More innocent souls lost. Our people are totally engaged. First Responders are already being given credit for doing a great job."
'Big ball of flames in the sky'
One witness who saw the crash was at work when he noticed "this big ball of flames in the sky," he told CNN affiliate WPVI.
"I was right here at the job and all I could see is this big ball of flames in the sky. Literally, we heard a loud, loud bang. It shook the entire building, the whole building shook," Mikey Littlejohn told WPVI.
Another witness, Vadim Osipov, said: "I was in shock. I'm still in shock. Like, this is insane."
Osipov said the incident reminded him of the war in Ukraine, where he is from. "There's always rockets coming in and stuff like that, then I see things flying."
Gov. Shapiro said that while Friday's incident was "an awful aviation disaster", it shows the unified response of local, state and federal officials.
"We saw neighbor helping neighbour," he said. "We know that there will be loss in this region and we want to offer our thoughts and our serious prayers for those who are grieving."
It's unclear how many homes have been affected by the crash. Mayor Parker said shelter is available for residents who have been affected.
Red Cross Philadelphia said a team of disaster workers is on the scene to assist those who have been displaced.
This is a developing story and will be updated.
