Investigators have recovered most of the airplane and helicopter from the Potomac River, but continued searching for objects on the river floor.

A figure skating tribute will take place in Washington, D.C., in early March to support victims of the midair collision and crash outside Ronald Reagan International Airport.

Ari Schulman told NBC Washington that he saw the plane crash while driving on the George Washington Parkway, which runs along the airport. He said the plane's approach looked normal, until he saw the aircraft bank hard to the right, with "streams of sparks" running underneath, illuminating its belly.

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The victims in the plane crash included Indiana University alum Asra Hussain, and Ohioans Elizabeth Keys, Grace Maxwell and Vikesh Patel.

Wind gusts and tidal conditions could slow operations today as officials try to pull wreckage from the icy Potomac River.

Officials said on Wednesday they have positively identified all 67 people killed in last week's midair collision between an American Airlines passenger jet and a military helicopter over the Potomac River in Washington.