Kansas, has taken the nonstop flight from Wichita to Washington, D.C., dozens of times since the route became available about a year ago. On Wednesday evening, a flight on that route collided with an Army helicopter as it descended toward Ronald Reagan Airport in Washington,

The National Transportation Safety Board’s website tells people to call the airline immediately after a possible crash if they believe their loved one was on board. The NTSB, who is likely to investigate the crash, can also be contacted at [email protected] and 202-314-6185.