Watch live: NTSB begins hearings on deadly DCA crash

The National Transportation Safety Board is beginning a series of hearings Wednesday morning looking into the January crash between an Army Black Hawk helicopter and American Airlines passenger plane near Ronald Reagan Washington National Airport.

The Jan. 29 mid-air collision over the Potomac River killed all 67 people onboard both aircraft, marking one of the deadliest aviation incidents since the 9/11 attacks.

The first hearing will focus on risk data, including previous incidents and flight routes. It will also include opening statements from witnesses — such as investigators, military officials and airline representatives, according to the agency.

In light of the deadly crash, among other aviation accidents, President Trump and Transportation Secretary Sean Duffy called for an overhaul of the Federal Aviation Administration and air traffic control systems.

The event is scheduled to begin at 9 a.m. EDT.

Watch the live video above.