Philadelphia crash LIVE: Girl killed had life-saving treatment before smash

A little girl recieved life-saving treatment in Philadelphia before she was killed alongside five others when an air ambulance crashed into a city neighbourhood in Pennsylvania on Friday.

The youngster had been travelling back home to Mexico with her mother after being treated for a life-threatening condition when their Learjet 55, a medical transport aircraft, crashed into a residential area in northeastern Philadelphia. Six people onboard, including four crew members, are understood to have died in the collision.

After hitting the ground, the  jet exploded in a fireball, engulfing several homes, with the flight’s operator Jet Rescue Air Ambulance later confirming that there were no survivors.

In addition, further casualties - and fatalities - are feared among those living in the houses along Cottman Avenue and Roosevelt Boulevard, where the deadly crash happened. Six non-passengers have reportedly been hospitalised with injuries.

Emergency services remain hard at work in Northeastern Philadelphia, where "an active scene [is] under investigation”, following a major incident declaration issued by authorities at around 6pm on Friday.

Since then, shocked witnesses in the Pennsylvania city have been recounting the terrifying experience. Michael Schiavone, aged 37, heard a loud bang and his house shook. Comparing it to a mini earthquake and when he checked his home security camera footage, he said it looked like a missile was coming down. He said: "There was a large explosion, so I thought we were under attack for a second."

The harrowing incident comes just two days after a fatal air crash rocked the US, when an American Airlines flight carrying 60 passengers and four crew members collided with an Army helicopter carrying three soldiers, in Washington DC. Sadly there were no survivors.

Follow our live blog below for updates on the Philadelphia crash