A 19-month-old boy has been shot dead by his four-year-old brother in the US city of Wichita, Kansas, in what police have called a "tragic" accident.
The incident was reported to have taken place in a house in a home where the two boys and a three-year-old girl were playing in a bedroom.
Wichita Police told local news organisations that the four-year-old then opened a nightstand containing a loaded handgun, and pulled the trigger without picking up the weapon.
The youngest child was thought to have been shot in the chest, dying from his injuries.
Officers described the incident as a tragic accident. However, it is possible that the children's 33-year-old father - who is believed to have been in the living room at the time - could face charges.
Lt. Todd Ojile said: "It appears that the four-year-old did know where this firearm was and had seen the firearm before.
"Why it was still there I do not know," he added.