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.

Victims of the plane crash near Ronald Reagan Washington National Airport in Arlington, Virginia, on Wednesday night were contestants in the U.S. Figure Skating Championships, held from January 20 to January 26 in Wichita,

Six people associated with Zeghibe’s club in Norwood, Massachusetts, were killed in the plane crash: skater Spencer Lane and his mother, Molly, skater Jinna Han and her mother, Jin, and coaches Evgenia Shishkova and Vadim Naumov, a married couple who were world champion pairs figure skaters from Russia in the 1990s.