GAZA, Oct. 2 (Xinhuanet) -- An Israeli plane fired on Saturday evening at least one missile at a group of Palestinians east of Jabalya refugee camp in northern Gaza Strip, killing two people and injuring three others, Palestinian sources said. They said that one of the three was in critical condition. The Israeli army has been operating in northern Gaza Strip since Tuesday night, especially in Jabalay refugee camp, where Israeli planes and tanks fired missiles and shells at Palestinian militants. The airstrike was the seventh airstrike on militants in the area. Enditem