A Boeing 737 has crashed at Havana's Jose Marti International Airport on Friday, according to reports. According to CNN, the Boeing flight crashed upon takeoff from the Cuban airport. Local news indicates that 104 people were on board. The reports indicated that firefighters were battling plumes of heavy smoke and fire emanating from the downed jet. It isn't clear if any of the people on board the airliner were injured or dead. Boeing's shares didn't appear to react to the news. The aerospace company's shares were up 1.9%, or $6.41, at $350.55, helping on Friday limit a decline for the Dow Jones Industrial Average where it is a major component. Update: Reports say the flight was a domestic headed to the city of Holguin. An earlier report had indicated that the flight was en route to Guyana.