Transcript for 21 hospitalized after naval ship explosion
To the latest now on that explosion and fire that tore through a Navy ship in San Diego injuring dozens of sailors and firefighters. Martha Raddatz is tracking all the developments. Reporter: Overnight crews racing to says the "Uss Bonhomme Richard." They're fighting and they'll win. Reporter: The fire burning so hot, fire crews could only stay on board 15 minutes at a time rotating in and out to fight the blaze. A total of 16 sailors and civilian personnel admitted to the hospital suffering more serious injuries from the smoke and fire after the explosion rocked the amphibious assault ship, all are nonlife-threatening injuries. Officials are investigating how it broke out early Sunday morning in a storage area in the lower decks of the ship. There was a report of an internal explosion, sort of a back draft of overpressurization as the compartment started heating up. That caused the pressurization. Reporter: A shelter in place order was given to sailors working and living near the still burning ship but Navy commanders say there is no concern about hazardous material or toxins. Debris that you would find in office spaces. That's what's fueling it right now is all the normal things you would find in the compartment. Reporter: Already undergoing repairs when the fire broke out only 160 personnel were aboard the "Bonhomme Richard" which typically carries a complement of 1,000. The ship commissioned in 1998 has been in service in war in Iraq and Afghanistan and in humanitarian aid missions throughout the pacific and Indian oceans. The Navy confident she will return to duty soon. There are more than a million gallons of fuel on board that ship but no ordinance since it was docked for repairs already and now fewer than seven remain hospitalized again with nonlife-threatening injurying. T.J. All right, Martha, thank you so much for that.
This transcript has been automatically generated and may not be 100% accurate.