The crash left six people dead and one person still missing, according to Washington fire department spokesman Vito Knott. In total, authorities have identified 17 people who died as a result of the collision near the Woodrow Wilson Bridge in Washington DC. Ten Marines were killed, along with two civilians aboard the helicopter and five crew members on board the plane. Two more passengers remained hospitalized.

Update

A medical jet with six Mexican nationals aboard crashed into a busy Philadelphia neighborhood Friday, marking another US aviation disaster following a passenger plane and military helicopter collision in Washington earlier this week.

Video footage showed the twin-engine plane descending at a sharp angle towards a residential area, sparking a huge fireball upon impact and showering wreckage over homes and vehicles.

The aircraft was a Learjet 55 that had taken off from Northeast Philadelphia Airport bound for Branson, Missouri. It crashed just after 6 p.m. (2300 GMT).

A young girl who had been in the US for medical care, her mother, and members of the flight and medical crews accompanying her onboard were killed in the crash, according to Shriners Children's Hospital.

All six on board were Mexican citizens, according to Mexico's foreign ministry.

The FAA said it was launching an investigation with the National Transportation Safety Board. Washington tragedy

Both agencies are already probing the deadliest US air disaster in almost a quarter-century after a passenger jet operated by an American Airlines subsidiary collided with a Black Hawk helicopter on Wednesday.

Divers were scouring for the remaining bodies in the frigid Potomac River, having pulled at least 41 from the water.

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CEO / Co-Founder

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