Rescue craft are in the Potomac River below the site of the collision with D.C. fire chief John Donnelly saying "we don't know" if there are any survivors.

For many, the Sikorsky UH-60 Black Hawk helicopter, like the one involved in the Wednesday collision over the Potomac River in Washington, D.C., is familiar for one reason: the 2001 movie "Black Hawk Down ," based on the 1993 shooting down of U.S. Black Hawk helicopters during the Battle of Mogadishu in Somalia.

The aircraft that collided in Washington, D.C., were a Bombardier CRJ700 jet operated as American Eagle Flight 5342 by PSA Airlines and a U.S. Army Sikorky UH-60 Black Hawk helicopter.

Here are images of the two aircrafts involved in the crash, taken from airline websites and directly manufacturers.

Audio transmissions capture the moment air-traffic controllers warned an Army helicopter that it was on course to collide with an American Airlines Group regional jet midair near Washington, D.C., Wednesday evening.

The Black Hawk helicopter was on an annual proficiency training flight when it collided with an American Airlines jet.

A massive search operation is underway after a passenger aircraft carrying 64 people collided midair with a US Army Black Hawk helicopter near Reagan National Airport outside of Washington, DC, according to aviation and defense officials.

Two former Russian figure skating champions were among the passengers as a Black Hawk helicopter crashed into the aircraft, resulting in dozens of fatalitie

Officials this morning say there are no survivors after a plane crash in Washington. The plane involved has ties to Ohio. What we know.

A Black Hawk helicopter can transport up to "12 fully equipped, seated troops in combat," according to Lockheed Martin, the weapons company that builds the helicopter. There are about 5,000 of these helicopters in use by the United States Military.

U.S. Army Black Hawk helicopter collided with American Eagle Flight 5342 on final approach to Ronald Reagan Washington National Airport over the Potomac.

A massive search operation is underway after a passenger aircraft carrying 64 people collided midair with a US Army Black Hawk helicopter near Reagan National Airport outside of Washington, DC, according to aviation and defense officials.