Two highly-regarded Russian figure skating coaches whose son recently finished fourth at the U.S. Figure Skating Championships were among those feared dead after an American Airlines flight collided with an Army helicopter and crashed into the frigid waters of the Potomac River Wednesday night.

The Philadelphia Skating Club and other figure skating clubs nationwide are offering condolences following deadly plane crash in Washington D.C. involving skaters and coaches.

Several members' of the U.S. Figure Skating team were onboard the American Airlines plane that collided with a U.S. Army Black Hawk Helicopter over Washington, D.C., the governing body said in a statement.