The scene is just outside the CEP Hunting Park School, a disciplinary school on Front Street.
Police say the teen, a 10th grader at the school, was shot twice in the head, once in the chest and once in the back as school was being dismissed for the day.
He was getting on a school bus when he was shot, and the bus was hit by a bullet. There were no students on board, and no one else was hurt.
The victim was taken to Saint Christopher's Hospital in critical condition.
"It's disturbing, and it's another sad example of the level of violence we're seeing in our community," said James Golden of the School District of Philadelphia.
Police are looking for a 17-year-old black male, between 5-10 and six feet tall, last seen wearing a black hooded sweat shirt , a black t-shirt and blue jeans.
Police are looking for two other males, and say they know their identities. However, those names have not been released.
Investigators say the shooting stems from an earlier fight.
You can get the latest crime statistics from the Philadelphia Police by CLICKING HERE for the force's crime data mapping site.
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