Mayor Cherelle Parker said five people are still hospitalized following a fatal medical jet crash in Northeast Philadelphia, three of whom are in critical condition.

Three U.S. Army soldiers were onboard a BlackHawk helicopter that collided with a passenger jet near Ronald Reagan Washington National Airport, U.S. officials said on Wednesday.

Family members of the victims of the plane crash in Washington, D.C., visited the crash site on Sunday morning. Dozens of the victims' loved ones could be seen gathered by the Potomac River to commemorate the 67 people killed in the deadly midair collision last week.

Meanwhile, federal investigators are working to piece together what led to the crash and recovery crews are set to pull more wreckage from the water.

An American Airlines plane prepares to land at Ronald Reagan Washington National Airport as crosses are seen in a makeshift memorial for the victims of the plane crash in the Potomac River Friday, Jan.

Who was on the plane that crashed outside D.C.? How many people died in the plane crash? Here's what we know after the plane and helicopter collision.

Authorities said the death is not related to the American Airlines and Black Hawk helicopter collision that happened on Wednesday night.

Recovery operations are still under way in Washington DC, after an American Airlines plane from Kansas carrying 64 people onboard collided with a military helicopter, manned by three personnel, on Wednesday night.

After an American Airlines jet and an Army Black Hawk helicopter collided and crashed into the Potomac River last week, leaving 67 people dead, responders have been working tirelessly to recover the bodies of those who were on board the aircraft.

Additional remains have been recovered from the icy Potomac River as recovery efforts continue following the deadly crash involving an American Airlines passenger plane and an Army helicopter Wednesday night.