BUFFALO GROVE, Ill. (CBS) -- The plane that crashed into the Potomac River near Washington, D.C. after colliding in midair with a Black Hawk helicopter Wednesday night was transporting some passengers returning home from a development camp held in connection with the U.S. Figure Skating championships.

Latest news and live updates after an American Airline jet collided with a Black Hawk helicopter over the Potomac River.

The figure skating community is very small and tight-knit, and Chicago area skaters who were also at the championship in Kansas are now mourning some of the athletes they competed against who died in the DC plane crash.

Mayor Johnson was asked​ by the House Oversight Committee to testify on Capitol Hill next month about Chicago's sanctuary city status — along with other big city mayors.

The crew of the Army Black Hawk helicopter involved in the deadly collision with a jetliner had thousands of hours of flight experience.

Conspiracy theories have arisen online as people look for answers following the plane and helicopter collision.

Investigators say there are likely no survivors in the deadly aircraft collision that occurred Wednesday evening above the icy waters of the Potomac river.

Following the deadly midair collision in Washington, D.C., Chicago officials are raising concerns about safety at local airports.

"Even though we have a lot of safety layers in there, if all the dominos line up the wrong way, we can have, on rare occasions, a catastrophic event," famed Captian Sully said on Good Morning America.

Investigators are searching for answers after Wednesday evening’s midair collision that left 67 people dead in Washington, D.C.

There are many questions online about how the fatal crash between a passenger jet and Army helicopter. Here’s what we can VERIFY so far.