St. Louis shooting: Boy killed by younger brother playing with gun, police say

St. Louis police also investigating apparent murder-suicide involving 12-year-old, 14-year-old
ST. LOUIS -- A 12-year-old in St. Louis is dead after being shot by his younger brother.

St. Louis police said the two boys were at a house Tuesday night when the 10-year-old found a shotgun and fired it, KMOV reported.

The case is under investigation.

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Authorities said they are focused on addressing the issue of responsible gun ownership in hopes that it will prevent situations like this from happening again.

This incident comes days after a 12-year-old and a 14-year-old from St. Louis died from gunshot wounds.

That is being investigated as a murder-suicide.