The NTSB gave an update Friday on the devastating crash in Washington, D.C., between an American Airlines plane and U.S. Army Black Hawk helicopter.

An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter collided midair and crashed into the Potomac River near Reagan Washington National Airport on Wednesday night. Officials have not provided a death toll but said all passengers and crew on both flights were feared dead.

It has been a month since the mid-air collision over the Potomac River killed 67 people and this Sunday, the community will honor the lives lost with a ‘Legacy on Ice’ tribute at Capital One Arena.

In just a few days, the Legacy on Ice concert will bring U.S. figure skating champions to Washington, D.C., to perform and raise money for the families of the Ronald Reagan Washington National Airport (DCA) crash victims.