An Islamic Jihad gunman was killed by an IDF tank shell in the southern Gaza town of Khan Yunis on Wednesday evening, Palestinians reported. It brought the number of Palestinians killed by the IDF throughout the day to four, as mortar shells fired by terrorists at southern Israel prompted deadly IDF responses. Earlier in the day, IDF troops operating inside the Gaza Strip targeted an individual they identified as an armed gunman. Palestinians reported that a Hamas operative and a six-year-old girl were killed when an IDF tank shell landed in their vicinity. Israel blamed the militants for setting up launchers in crowded neighborhoods. Associated Press Television News footage showed that the girl's head was blown off. The IDF said they had opened fire at gunmen responsible for launching rockets into Israel. Later on Wednesday, the IDF launched an air strike against members of a rocket-launching cell responsible for a mortar attack which lightly wounded two factory workers in Kibbutz Nir Oz. According to Palestinian sources, one member of the cell was killed in the strike. The Nir Oz factory was the same spot where last week's deadly mortar attack took place. Firefighters reportedly battled a blaze which broke out in the factory following the attack. At least six mortar shell strikes were reported throughout the western Negev Wednesday.