Andre Howard shares moment when his 10-year-old son, Trey Howard, protected his younger sister from flying debris after a plane crashed in Philadelphia.

The number of people injured has increased from 22 to 24 after a medical jet crashed into the ground in Northeast Philadelphia, officials said. The death toll remains at seven.The number of wounded went up because there was a firefighter who had a heart attack and a police officer who suffered smoke inhalation in the incident,

The Learjet, carrying a pediatric patient and five others, crashed on Friday, killing all on board. On the ground, one person was killed and at least 19 others were injured, officials said.