He said this during a speech on Friday at the school in Chicago, where a month ago, 15-year-old Hadiya Pendleton, who performed at his inauguration, was shot dead.
The President Obama stated that over the past year 65 children were killed in Chicago.
Obama said his administration has developed a package of measures to tighten gun control, in particular a ban on the possession of semi-automatic weapons and restrictions on the number of rounds that can be held in a cartridge.
Obama called on Congress to approve his initiatives.
Voice of Russia, TASS