ST. PAUL, Minn. (AP) — St. Paul police have arrested a woman on suspicion of child endangerment and other charges after a 4-year-old girl was shot in the leg by a 7-year-old.

The St. Paul Pioneer Press reports (http://bit.ly/2h3T5I6 ) that the shooting happened in a home Tuesday evening. Police say the girl's injury is not considered life-threatening.

Witnesses told authorities it appeared the 7-year-old found the gun in a purse that had been left in a playroom.

Officers arrested a 21-year-old woman on charges of child endangerment, negligent storage of a firearm and drug possession. Her relationship to the children wasn't immediately clear.

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Information from: St. Paul Pioneer Press, http://www.twincities.com