An American Airlines plane with 64 people on board collided with an Army helicopter near Washington, D.C., and crashed into the Potomac River.

While authorities focus on the cause of the US's deadliest aviation disaster since 2001, families are mourning their loved ones. Here's the latest.

Divers are expected to return to the Potomac River as part of the recovery and investigation after the United States’ deadliest aviation disaster in almost a quarter century.