Figure skaters and coaches returning from the recent U.S. national championships were aboard the American Airlines flight that collided with a Black Hawk helicopter near Reagan National Airport on Wednesday, officials said.

The U.S. Figure Skating organization confirmed that “several members” of the skating community were aboard American Airlines Flight 5342 which took off from Wichita, Kansas, and crashed approaching Reagan National Airport after colliding with a helicopter shortly before 9 p.m.

“These athletes, coaches, and family members were returning home from the National Development Camp held in conjunction with the U.S. Figure Skating Championships in Wichita, Kansas,” the organization said.

“We are devastated by this unspeakable tragedy and hold the victims’ families closely in our hearts,” the organization said. “We will continue to monitor the situation and will release more information as it becomes available.”

There were 60 passengers and four crew members aboard the jet and three personnel aboard the Army helicopter, which officials said was on a training flight at the time of the crash.

Officials have not publicly confirmed the number of fatalities in the crash.

At an early Thursday morning news conference, officials said they were continuing search-and-rescue operations in the icy Potomac River but did not say whether anyone had been pulled from the water alive, or confirm any deaths.

Meanwhile, Russian media reported that two Russian figure skaters were on board the American Airlines flight, and the presidential spokesman expressed condolences to the families and friends of those killed in the plane crash.

“There were other of our fellow citizens there. Bad news from Washington today,” Russian presidential spokesman Dmitry Peskov said on Thursday morning.

Earlier, several Russian state media outlets reported that the 1994 world figure skating champions in pairs, Evgenia Shishkova and Vadim Naumov, were on board the plane, though U.S. authorities have not confirmed these reports.