One day after the mass shooting at a Florida high school that left 17 people dead, a teenager in Philadelphia was caught on camera bringing a gun to a school entrance.

The incident took place at about 3:20 p.m. on Feb. 15 at the Frederick Douglas Mastery Charter School, the Philadelphia police said.

PHOTO: A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School in Philadelphia, Feb. 15, 2018.
Philadelphia Police
A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School in Philadelphia.

The unknown teenager is seen trying to open the door but it’s locked.

PHOTO: A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School, Feb. 15, 2018, in Philadelphia. Philadelphia Police
A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School, Feb. 15, 2018.
He tries knocking, but then turns around and leaves.
PHOTO: A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School in Philadelphia, Feb. 15, 2018.Philadelphia Police
A teenager is wanted for bringing a gun to the entrance of Frederick Douglass Mastery Charter School in Philadelphia, Feb. 15, 2018.

The suspect, believed to be between the ages of 13 and 16, is wanted for firearms violations, police said.