(CNN) -- Legislation banning the kind of multiple-round ammunition magazine used in the Tucson, Arizona, shootings that killed six and critically wounded U.S. Rep. Gabrielle Giffords will be introduced Tuesday in the U.S. House.
Democratic Rep. Carolyn McCarthy of New York will propose a measure banning "large capacity" ammunition magazines, defined as those that hold more than 10 rounds, said McCarthy's spokesman, Shams Tarek.
McCarthy scheduled a news conference Tuesday in Washington to announce the legislation.
Police say the semi-automatic weapon used in the January 8 mass shooting at a political event outside a supermarket had a magazine that could hold at least 30 rounds of ammunition.
Such large-capacity magazines were outlawed under the assault weapons ban that was in place from 1994 until 2004, when Congress let it expire under President George W. Bush. CNN
