Los Angeles, California (CNN) -- A 9-year-old boy fatally shot his 2-year-old brother while playing with a gun in Los Angeles, authorities said late Saturday.

The boy found the gun in his house, said Sgt. Tim Walters of the Los Angeles Police Department. While playing with it, he accidentally shot the toddler, Walters said.

No charges will be filed, according to Walters.

Police said they responded to a call Friday and found the toddler suffering from a single gunshot wound to the torso. Paramedics took him to a hospital, where he died later that night.

"Homicide detectives interviewed family members and determined that the gun had gone off while the 9-year-old was playing with it," police said in a statement.

The victim's name was withheld pending notification of next of kin, authorities said.