Who were the rockets launched by?

A 3-year old Palestinian boy was killed and nine Palestinians were wounded late Tuesday in the northern Gaza Strip when rockets launched by militants misfired and landed in Palestinian areas, rescue workers said. Witnesses said militants fired three rockets at the Israeli town of Sderot where thousands of Israeli opponents of the planned Israeli withdrawal from Gaza had gathered in a demonstration. Two of the rockets fell in Palestinian areas and the third fell in an open field near Sderot. Among the wounded were five children, aged 4 to 11.