(AGI) Gaza, July 7 - Israeli aircraft have attacked more than20 targets on the Gaza Strip in response to the firing of atleast 50 rockets, missiles and mortar shells by Palestinianmilitants. The Israelis carried out at least four air strikes,three on Beit Lahia, in the north, and one on Gaza. Accordingto the emergency services in Gaza, a man and a four-year-oldchild were injured. Hamas sources reported that six members ofthe movement had been killed and another badly hurt. An Israelisoldier was injured by rocket fire at Eshkol. (AGI) . .