A 4-year-old American youngster is the second in a week to attend school with a firearm.

According to The Straits Times, a four-year-old in Texas smuggled a loaded firearm onto a school campus.

In Cochise, Arizona, a school was entered by a seven-year-old with a pistol just two days before.

A nonprofit group called Giffords Law Center issued a warning about "how tempting weapons are to minors."

According to The Straits Times, a four-year-old from Texas is the second US youngster in a week to smuggle a weapon onto a school campus.

A gun safety organisation has since warned that there is a "tremendous problem" with preventing child access to guns.

An off-duty police officer was called in for help at a school in Corpus Christi, Texas, on Wednesday morning after it was learned that a student there had access to a gun, according to authorities.

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