Houston, Philadelphia Kids Accidently Shoot Themselves at Home

Dec. 12, 2012— -- A 4-year-old boy in Houston accidently shot himself in the head and a 5-year-old girl in Philadelphia shot herself in the foot after both children got a hold of their parents' guns Tuesday night while playing at home.

The unidentified 4-year-old boy climbed onto a tall furniture chest and found a hidden handgun around 11:40 p.m. Tuesday, according to the Houston Police Department.

The gun accidentally discharged when the child was turning it toward himself, hitting him in the head, police said.

WATCH: Kids and Guns

The parents, who were in another room, heard the gunshot and found the child lying on his bed. He was transported to Memorial Hermann Hospital where authorities said he remains in critical condition.

In Philadelphia, the 5-year-old girl is recovering after she shot herself in the foot with her father's gun around 11 p.m. Tuesday.

Police said the girl's father works in security. His gun was in a holster when the girl found it and pulled the trigger.

No charges have been filed in either case.